Who Else or Whom Else: Which One Is Correct?

Who Else or Whom Else is a common English grammar question that confuses learners and writers, but a simple subject-and-object rule makes the correct choice easier.

Who Else vs Whom Else is a classic debate that creates uncertainty for native English speakers, English learners, professionals, and confident writers. I remember the first time I typed the phrase in a professional email and second-guessed my choice. These tiny words look simple, but the tiny letter m can shift the entire structure of a sentence, leaving you mid-sentence and wondering which version belongs.

The good news is that the underlying rule is easy to learn. Use who else when the phrase acts as the subject performing an action, such as “Who else is coming to the meeting?” Use whom else when it acts as the object that receives the action, as in “To whom else should I send the report?” These real-world examples explain the difference between the two expressions and show how subjects, objects, and action verbs work in sentence construction.

The traditional rule still matters when strict grammatical precision is necessary in formal emails, academic papers, and professional documents. However, modern English strongly prefers who else in nearly every context, while whom else appears mainly in highly formal writing. This grammar guide offers practical memory tricks: check the subject position and object position, then consider which form sounds natural when saying it out loud. This memory technique improves sentence flow, natural flow, and grammatical accuracy in spoken English, written English, and everyday communication.

Quick Answer: Who Else or Whom Else?

Both who else and whom else are correct. Your choice depends on the grammatical role of the pronoun, not simply on how formal your sentence sounds.

• Who else: Use it when asking which additional person performs an action or occupies the subject position.
• Whom else: Use it when asking which additional person receives an action or follows a preposition in traditional formal grammar.

Consider these examples:

Phrase	Example	Why It Works
Who else	Who else wants to join us?	The unknown person performs the action of wanting.
Who else	Who else called this morning?	The unknown person performs the action of calling.
Whom else	Whom else did you invite?	The unknown person receives the action of inviting.
Whom else	To whom else should I send the report?	The unknown person follows the preposition to.

In casual conversation, you might naturally ask, “Who else did you invite?” This wording is widely accepted in contemporary American English, even though traditional grammar identifies whom else as the formal object form.

The easiest rule to remember is this: who goes with he or she, while whom goes with him or her. This substitution test provides a practical starting point when you’re unsure.

What Does Who Else Mean?

The phrase who else asks about another person or additional people beyond someone already mentioned, considered, or understood from context. The word else adds the meaning of “another,” “anyone additional,” or “besides that person.”

For example, suppose your friend tells you that Maya plans to attend a concert. You might ask, “Who else is coming?” You’re asking which other people will attend.

The phrase doesn’t necessarily require someone to mention another person first. Context alone can establish the comparison.

For instance, a teacher might ask, “Who else knows the answer?” The teacher wants to identify any additional students who can respond.

When to Use Who Else

Use who else when the phrase functions as the subject of a verb. The subject performs an action, experiences a state, or occupies the position described by the verb.

Consider these examples:

• Who else wants coffee? — The unknown person wants coffee.
• Who else attended the meeting? — The unknown person attended.
• Who else knows the password? — The unknown person knows it.
• Who else is available tomorrow? — The unknown person is available.
• Who else could help us? — The unknown person could provide help.

In each sentence, who else identifies the person connected to the verb as its subject.

You can also use the phrase in indirect questions, which appear inside larger statements or questions.

• I wonder who else is coming.
• She asked who else had applied.
• Do you know who else wants to participate?
• We need to find out who else can approve the request.

Notice that the phrase remains who else even when the question appears inside another sentence. The grammatical role still determines the choice.

Who Else in Everyday Conversations

You’ll encounter who else in conversations about plans, decisions, events, responsibilities, and shared experiences.

For example, a coworker might ask, “Who else is working on this project?” A parent could ask, “Who else wants a slice of pizza?” Friends might wonder, “Who else is going to the game?”

These questions sound natural because who else clearly identifies the person or people being discussed.

The phrase also works in emphatic statements and rhetorical questions:

• Who else could have done such a great job?
• Who else would remember a detail like that?
• Who else but you would think of that idea?

In the final example, who else but you is an established expression that emphasizes a person’s distinctive behavior. It often communicates admiration, surprise, or playful teasing.

What Does Whom Else Mean?

The phrase whom else asks about another person who occupies an object position in a sentence. Traditional grammar uses whom instead of who when the pronoun receives an action or serves as the object of a preposition.

For example, consider this question:

“Whom else did the manager interview?”

The manager performs the interviewing. The person being interviewed receives the action. Therefore, traditional formal grammar favors whom else.

Now compare it with this sentence:

“Who else interviewed the manager?”

Here, the unknown person performs the interviewing. The phrase functions as the subject, so who else is correct.

The two questions contain nearly identical words, yet they ask about different roles. That distinction matters more than sentence length, word order, or formality.

When to Use Whom Else

Use whom else when the pronoun functions as the object of a verb or preposition in traditional grammar.

As the object of a verb:

• Whom else did you invite?
• Whom else should we contact?
• Whom else has the committee selected?
• Whom else did the interviewer question?

In these examples, you, we, the committee, and the interviewer perform the actions. The people identified by whom else receive those actions.

As the object of a preposition:

• To whom else should I address the letter?
• With whom else did you discuss the proposal?
• For whom else did they reserve a seat?
• About whom else were the students talking?

The prepositions to, with, for, and about introduce relationships between the action and the person being discussed. Traditional formal grammar uses whom after these prepositions.

However, natural American English often places the preposition at the end of a question and uses who instead.

For example:

• Formal: To whom else should I speak?
• Conversational: Who else should I speak to?

Both versions communicate the same basic idea. The first sounds more formal, while the second usually feels more natural in everyday conversation.

Whom Else in Formal Writing

The phrase whom else can be useful in academic writing, official correspondence, legal documents, and carefully edited prose. It signals the objective form of the pronoun when the writer follows traditional grammatical conventions.

For example:

“To whom else should the department forward the confidential documents?”

This construction works well when the writer wants a formal tone and places the preposition before its object.

Another example is:

“The director asked whom else the committee had consulted before making its decision.”

Here, whom else functions as the object of had consulted within an indirect question.

Still, formal writing doesn’t require whom in every possible object position. Contemporary standard English also accepts many constructions with who, particularly when the preposition appears at the end of the clause. Clarity and natural phrasing remain important.

Who Else vs. Whom Else: Key Differences

The distinction between these expressions becomes straightforward once you separate grammatical function from conversational style.

Feature	Who Else	Whom Else
Traditional grammatical role	Subject	Object
Common substitution	He, she, they	Him, her, them
Typical question	Who else called?	Whom else did you call?
Use after a fronted preposition	Generally not standard in traditional formal grammar	Preferred
Everyday American English	Very common	Less common
Formal writing	Appropriate when used as a subject	Appropriate when used as an object
Main consideration	Who performs or experiences the action?	Who receives the action or follows a preposition?

Grammatical Role Matters More Than Formality

A common mistake is to assume that whom else always sounds more intelligent or professional. That isn’t how the grammar works.

Consider these sentences:

• Who else prepared the presentation?
• Whom else did you ask to prepare the presentation?

The first sentence needs who because the unknown person prepared the presentation. The second traditionally takes whom because the unknown person received the request.

Replacing who with whom in the first sentence would create a grammatical problem in standard formal English. Adding who to the second sentence would produce a common conversational construction, but it wouldn’t follow the traditional subject-object distinction.

The best choice depends on the sentence’s structure. Formality influences how you express an object, but it doesn’t turn a subject into an object.

How the Word Else Affects Meaning

The word else doesn’t change the grammatical case of who or whom. It simply adds the idea of another person or an additional possibility.

Compare:

• Who called?
• Who else called?
• Whom did you invite?
• Whom else did you invite?

The addition of else doesn’t alter the relationship between the pronoun and the verb. You can apply the same subject-object rule to both versions.

This is useful because you don’t need to learn a separate grammar rule for the word else. Learn the difference between who and whom, then apply it to the complete phrase.

How to Choose Between Who Else and Whom Else

You don’t need to memorize dozens of rules to make the right choice. Two practical methods can help you identify the correct phrase.

Use the He, She, Him, and Her Test

The simplest method is to replace the unknown person with a familiar personal pronoun.

• If he, she, or they fits, use who.
• If him, her, or them fits, traditional grammar favors whom.

Let’s apply the test to a few examples.

Example one: Who else wants dessert?

Turn the question into a statement: “He wants dessert.”

Because he fits as the subject, choose who else.

Example two: Whom else did you invite?

Rewrite the question as a statement: “You invited him.”

Because him fits as the object, traditional grammar favors whom else.

Example three: To whom else should we send the package?

The statement becomes: “We should send the package to him.”

The pronoun follows to and functions as its object. Therefore, whom else is the traditional formal choice.

Example four: Who else can solve this problem?

The statement becomes: “She can solve this problem.”

Because she performs the action, who else is correct.

The substitution method is especially useful when a sentence contains several verbs or a complicated clause. Instead of guessing based on how the sentence sounds, identify the pronoun’s role.

Identify the Subject and Object

Another reliable method is to locate the verb and determine who performs its action.

Follow these steps:

1. Find the main verb in the relevant clause.
2. Identify the person who performs the action or occupies the subject position.
3. Determine whether the unknown person receives the action.
4. Check whether a preposition introduces the person.
5. Choose who for the subject or whom for the object under traditional grammar.

For example:

“Who else did the coach recommend?”

At first, who else might seem correct because it appears at the beginning. However, word order alone doesn’t determine grammatical case.

Rewrite the question as a statement: “The coach recommended him.”

The coach is the subject. The recommended person is the object. Traditional grammar therefore favors:

“Whom else did the coach recommend?”

In everyday American conversation, however, “Who else did the coach recommend?” is also widely accepted.

Check Whether a Preposition Is Involved

Prepositions often provide a useful clue. Words such as to, for, with, about, from, and by can introduce an object.

Compare these constructions:

Formal Construction	Conversational Construction
To whom else did you speak?	Who else did you speak to?
With whom else are you traveling?	Who else are you traveling with?
For whom else did she buy a ticket?	Who else did she buy a ticket for?
About whom else did they ask?	Who else did they ask about?

The formal versions place the preposition before whom. The conversational versions place it later and commonly use who.

This difference doesn’t mean that every sentence containing a preposition requires whom. You must consider how the complete construction works and whether you’re following traditional formal grammar or ordinary contemporary usage.

Common Mistakes With Who Else and Whom Else

Even experienced writers sometimes mix up these phrases. Most errors happen when people rely on word order or formality instead of identifying the pronoun’s role.

Using Whom Else as a Subject

A subject performs the action or serves as the subject of a linking verb. Traditional grammar requires who in this position.

Incorrect: Whom else wants to join us?

Correct: Who else wants to join us?

The person you’re asking about performs the action of wanting to join. The pronoun therefore belongs in the subject position.

Here are more examples:

• Incorrect: Whom else knows the answer?
• Correct: Who else knows the answer?
• Incorrect: Whom else was responsible for the decision?
• Correct: Who else was responsible for the decision?

In each corrected sentence, who else identifies the person connected to the verb as its subject.

Read More: Continuous vs. Continous: Meaning, Correct Spelling?

Using Who Else as an Object in Formal Writing

Traditional grammar favors whom when the pronoun functions as an object. However, contemporary American English often accepts who in these situations, particularly in conversation.

Compare these examples:

• Traditional formal: Whom else did the director select?
• Common conversational: Who else did the director select?
• Traditional formal: To whom else should we send the invitation?
• Common conversational: Who else should we send the invitation to?

The conversational versions aren’t automatically errors. Merriam-Webster explains that who is standard in many constructions where traditional grammar might prefer whom. <Link url=” title=”Read Merriam-Webster’s guide to who vs. whom”/>.

For an academic assignment or a publication that follows strict traditional conventions, use whom when the pronoun clearly functions as an object. In everyday communication, choose a construction that sounds natural and remains clear.

Confusing Prepositions With Grammatical Roles

A preposition can provide a strong clue, but you still need to examine the sentence.

Consider this question:

“Who else did Maria speak to?”

The phrase who else appears before the verb phrase, but Maria performs the action of speaking. The unknown person follows the preposition to and functions as its object.

Traditional formal grammar favors:

“To whom else did Maria speak?”

The first version is common in everyday American English. The second follows the traditional formal pattern.

The important lesson is that a pronoun’s position at the beginning of a question doesn’t automatically make it a subject. Sentence structure determines its role.

Assuming Whom Else Is Always More Correct

Using whom doesn’t automatically improve a sentence. In fact, choosing it when the pronoun acts as a subject creates an error under standard formal grammar.

Compare:

• Correct: Who else submitted the application?
• Incorrect in traditional formal grammar: Whom else submitted the application?
• Correct: Whom else did you ask to submit the application?
• Common conversational alternative: Who else did you ask to submit the application?

The last example also illustrates why you should analyze the complete construction. The person being asked to submit the application functions as the object of ask, even though that person would perform the later action of submitting it.

Who Else or Whom Else in Questions

Questions can make the distinction harder because English often changes its word order. Fortunately, the same subject-object principle applies to direct questions, indirect questions, and questions containing prepositions.

Direct Questions: Who Else vs. Whom Else

A direct question asks something explicitly and usually ends with a question mark.

Compare these examples:

Who else called you?

The unknown person performed the action of calling. Use who else.

Whom else did you call?

You performed the action of calling. The unknown person received the call, so traditional grammar favors whom else.

More examples include:

Question	Preferred Traditional Form	Explanation
Who else won the competition?	Who else	The unknown person won.
Whom else did the judge question?	Whom else	The judge questioned the person.
Who else can lead the team?	Who else	The unknown person can lead.
Whom else should the team interview?	Whom else	The team interviews the person.
Who else has arrived?	Who else	The unknown person has arrived.
Whom else have they invited?	Whom else	They invited the person.

These examples reveal a useful pattern. When the unknown person performs the main action, use who. When the person receives the action, traditional grammar favors whom.

Indirect Questions: Who Else or Whom Else

An indirect question appears inside a statement or another question. It doesn’t necessarily end with a question mark because the entire sentence may be a statement.

For example:

• I wonder who else attended the meeting.
• She asked who else wanted to participate.
• We need to determine whom else the committee interviewed.
• He couldn’t remember whom else they had contacted.

The same rule applies inside each clause. Don’t choose the pronoun based only on its position within the larger sentence.

In “I wonder who else attended,” the phrase acts as the subject of attended. The main clause begins with “I wonder,” but that doesn’t change the role of who else in the embedded clause.

Similarly, in “She asked whom else the committee interviewed,” the committee performs the interviewing. The unknown person receives the action, so whom else follows traditional formal grammar.

In everyday conversation, you may hear who else in both object examples. This usage is common and widely accepted in contemporary American English.

Questions With Prepositions

Prepositions create another common point of confusion. Traditional formal English often places the preposition before whom, while casual English usually moves it toward the end.

Consider the following pairs:

• Formal: With whom else are you traveling?
• Conversational: Who else are you traveling with?
• Formal: To whom else did the professor speak?
• Conversational: Who else did the professor speak to?
• Formal: For whom else did you prepare a meal?
• Conversational: Who else did you prepare a meal for?

Both versions of each question communicate the same basic meaning. The difference lies in grammatical convention and style.

Purdue University’s guide to also explains how formal constructions use whom after a preposition, while conversational English commonly favors other structures.

Who Else or Whom Else in Professional and Academic Writing

Your audience and purpose can influence which construction works best. However, the grammatical role remains the starting point.

Formal Emails and Business Communication

Professional writing should sound clear, respectful, and natural. You don’t need to make every question sound elaborate to achieve a professional tone.

For example, you might write:

“Who else should receive a copy of the meeting notes?”

This sentence is direct, professional, and grammatically correct because who else functions as the subject of should receive.

Now consider:

“To whom else should we send the revised contract?”

This construction is also correct. The phrase whom else follows the preposition to and suits a more formal style.

Choose between these approaches based on the sentence and your organization’s writing conventions.

Practical guidance for business writing:

• Use who else for questions about who performs an action.
• Use whom else when following traditional formal grammar for objects.
• Prefer natural phrasing over unnecessarily complicated constructions.
• Keep your wording consistent throughout the document.
• Rewrite awkward sentences when a simpler structure communicates the same idea.

For example, instead of forcing an elaborate construction into a short email, you could ask, “Who else needs this report?” The sentence is clear and professional without sounding stiff.

Academic and Formal Writing

Academic writing often places greater emphasis on grammatical precision and consistency. If your instructor, editor, or style guide expects traditional pronoun case, use whom when it functions as an object.

Consider this sentence:

“The researcher examined whom else the participants had consulted before completing the survey.”

The researcher examined the information about additional people whom the participants had consulted. Within the embedded clause, whom else functions as the object of had consulted.

Now consider:

“The researcher identified who else had participated in the survey.”

Here, who else functions as the subject of had participated.

The surrounding sentence can be complex, but the decision still depends on the pronoun’s role inside its own clause.

When editing an academic paper, examine the relevant clause instead of relying on the overall sentence structure. This approach helps prevent mistakes in long sentences containing several verbs.

Casual Writing and Conversation

In everyday American English, who has largely taken over many contexts traditionally associated with whom. This pattern appears in conversations, text messages, emails, interviews, and informal online discussions.

For example:

• Who else is coming tonight?
• Who else did you tell?
• Who else should we invite?
• Who else are you working with?

These sentences sound natural to many American English speakers. The last three use who else in object constructions that traditional grammar might express with whom else.

That doesn’t mean the traditional distinction has disappeared. Rather, modern English offers speakers more flexibility in many object positions.

Purdue OWL notes that whom appears less often in American English conversation and that speakers commonly use who in informal constructions. See its for additional examples.

Who Else vs. Whom Else: Real-World Examples and Corrections

The following examples show how the phrases work across everyday, professional, and academic situations.

Incorrect or Less Suitable	Better Choice	Reason
Whom else wants to volunteer?	Who else wants to volunteer?	The unknown person performs the action.
Whom else is waiting outside?	Who else is waiting outside?	The phrase functions as the subject.
To who else should I send this?	To whom else should I send this?	Traditional formal grammar uses whom after to.
With who else did you travel?	With whom else did you travel?	Traditional formal grammar uses whom after with.
Who else did the manager hire?	Whom else did the manager hire?	The formal object form is whom; the original is common conversational English.
Who else did the committee consult?	Whom else did the committee consult?	Traditional formal grammar favors whom as the object.
Whom else could solve this puzzle?	Who else could solve this puzzle?	The unknown person performs the action.
For who else was the award intended?	For whom else was the award intended?	Traditional formal grammar uses whom after for.
Who else did you discuss the matter with?	Who else did you discuss the matter with?	This is natural conversational English.
I wonder whom else will attend.	I wonder who else will attend.	The unknown person is the subject of will attend.

The table distinguishes genuine subject-case errors from conversational constructions that traditional grammar might revise. Not every sentence containing who in an object position is automatically wrong in modern American English.

Case Study: Choosing the Right Phrase at Work

Imagine that a project manager wants to identify everyone who helped complete a major assignment.

The manager asks:

“Who else contributed to the project?”

This sentence works because the people being identified performed the action of contributing.

Later, the manager asks an assistant to identify everyone who received an invitation.

The assistant might write:

“Whom else did you invite to the review meeting?”

This follows traditional grammar because the unknown person received the invitation.

In a casual team chat, however, the assistant could naturally write:

“Who else did you invite to the review meeting?”

Both questions communicate the intended meaning. The formal version emphasizes traditional grammatical case, while the conversational version reflects common contemporary usage.

The lesson: Identify the grammatical role first. Then choose the wording that fits your audience and writing style.

Quick Practice: Who Else or Whom Else?

Test your understanding by filling in each blank with who else or whom else. Use traditional grammatical case for the answers.

1. ______ wants to present the final proposal?
2. ______ did the principal call into the office?
3. To ______ should we address the letter?
4. ______ knows how to repair the printer?
5. ______ else did the hiring manager interview?
6. With ______ were you discussing the schedule?
7. I wonder ______ can help us finish the task.
8. ______ did the committee select for the position?
9. For ______ was the scholarship created?
10. ______ else has completed the assignment?

Answer Key and Explanations

1. Who else — The unknown person wants to present the proposal.
2. Whom else — The principal called the person into the office.
3. Whom else — The pronoun follows the preposition to.
4. Who else — The unknown person knows how to repair the printer.
5. Whom else — The hiring manager interviewed the person.
6. Whom else — Traditional grammar uses whom after with.
7. Who else — The unknown person can help.
8. Whom else — The committee selected the person.
9. Whom else — The pronoun follows the preposition for.
10. Who else — The unknown person has completed the assignment.

In ordinary American conversation, speakers often use who else in several of the object examples. The answer key follows traditional grammatical case so you can practice the underlying rule.

Writing

FAQs

1. What is the difference between who else and whom else?

Who else refers to the subject performing an action, while whom else refers to the object receiving an action. The correct choice depends on the word’s role in the sentence.

2. Is who else grammatically correct?

Yes, who else is grammatically correct when asking which additional person performs an action. For example, “Who else wants to join the meeting?” uses who else as the subject.

3. When should I use whom else?

Use whom else when the phrase functions as an object, especially after a preposition in formal writing. For example, “To whom else should I send this report?” follows the traditional grammar rule.

4. Do people use who else more often than whom else?

Yes, modern English strongly favors who else in most everyday conversations and informal writing. People still use whom else in some formal situations where grammatical precision matters.

5. What is an easy trick to remember who else vs whom else?

Try replacing who with he and whom with him. If he fits, use who else. If him fits, use whom else. For example, “Who else called?” becomes “He called,” so who else is correct.

Conclusion

Understanding Who Else or Whom Else becomes easier when you identify the subject and object in a sentence. Use who else for the person performing an action, and choose whom else when the person receives the action or follows a preposition in formal contexts. Although the traditional grammar rules still matter, who else is more common in everyday English. With practical examples, regular practice, and attention to sentence structure, you can improve your word choice, strengthen your writing skills, and communicate more confidently.

Remember that context also matters when choosing between these expressions. In professional emails, academic papers, and other formal documents, whom else may suit a more traditional tone. In conversations, messages, and most informal situations, who else usually sounds more natural. Learning this simple memory trick can reduce grammatical confusion and help you use both expressions correctly in spoken English and written English.