Who Else vs Whom Else: Which One Is Grammatically Correct?

Have you ever wondered whether to write “who else” or “whom else” when asking about another person? These expressions look similar, and both may seem grammatically possible at first glance. However, they serve different grammatical purposes, and choosing the right one depends on how the person functions in a sentence. Understanding this distinction can help you write clearer emails, ask better questions, and avoid common English grammar mistakes.

The confusion often comes from the difference between subject and object pronouns. English speakers commonly use “who” to refer to a person performing an action, while “whom” traditionally refers to a person receiving an action or appearing after a preposition. Adding the word “else” does not change these basic rules. In everyday conversation, “who else” is overwhelmingly more common, while “whom else” is appropriate in certain formal constructions, particularly after prepositions.

 In this guide, you will learn the meanings, grammatical rules, practical examples, and differences between American and British English so you can confidently choose the correct expression.

Quick Answer

“Who else” is the standard choice when asking which additional person performs an action or is involved. “Whom else” is used when the person is the object of a verb or preposition. For example, “Who else is coming?” but “Whom else did you invite?”

Why People Confuse It

People confuse “who else” and “whom else” because both expressions refer to an additional person, and the word “else” has the same meaning in each: another person besides someone already mentioned or considered.

The real difference comes from the pronouns who and whom.

• Who: Generally functions as the subject of a verb.
• Whom: Traditionally functions as the object of a verb or preposition.
• Else: Means “in addition” or “besides.”

Consider these questions:

• “Who else wants to participate?” — The person performs the action of wanting.
• “Whom else did you invite?” — The person receives the action of inviting.

In modern conversational English, many speakers use “who” even in situations where traditional grammar prescribes “whom.” This is why “Who else did you invite?” sounds natural to many people, although “Whom else did you invite?” follows the traditional object-pronoun rule.

First Word: Who Else

Who else is an expression used to ask about another person or additional people. It is the natural, widely accepted choice in most everyday English questions.

The word “who” is generally used when asking about the subject of a sentence.

Meaning of Who Else

“Who else” means “which other person” or “what other people besides the person already mentioned.”

For example:

• Who else wants to join us?
• Who else knows the answer?
• Who else is attending the meeting?
• Who else can help with this project?

In each example, “who” refers to the person performing the action or occupying the subject position.

When to Use Who Else

Use “who else” when asking about:

• People performing an action.
• Additional people who have a particular quality or responsibility.
• Other people participating in an activity.
• People who know, believe, think, or feel something.

Examples in context:

1. Who else is waiting outside?
2. Who else wants a cup of tea?
3. Who else can solve this problem?
4. Who else was invited to the wedding?
5. Who else agrees with your opinion?

“Who else” is especially useful in everyday conversations, interviews, classroom discussions, and informal writing.

Second Word: Whom Else

Whom else is a grammatically correct expression used when asking about an additional person who functions as the object of a verb or preposition.

Although it is less common in casual conversation, it remains useful in formal writing and contexts where traditional English grammar is expected.

Meaning of Whom Else

“Whom else” means “which other person” when that person is the object of an action or a preposition.

For example:

• Whom else did you invite?
• Whom else should we contact?
• To whom else did you send the message?
• With whom else did she travel?

In these sentences, the person is receiving an action or appearing as the object of a preposition.

When to Use Whom Else

Use “whom else” when traditional grammar calls for an object pronoun.

Common situations include:

• After verbs such as invite, contact, meet, and help.
• After prepositions such as to, with, for, and about.
• In formal questions and carefully edited writing.

Examples in context:

1. Whom else did the manager interview?
2. Whom else should I inform?
3. For whom else was this package intended?
4. With whom else did you discuss the proposal?
5. About whom else were they talking?

In everyday speech, many people would replace “whom” with “who” in several of these examples. The traditional form is still valuable to recognize, especially when writing formally.

Comparison Table

Feature	Who Else	Whom Else
Main grammatical role	Subject	Object
Basic meaning	Which other person?	Which other person as an object?
Typical usage	Everyday conversation and writing	Formal or traditional grammar
Example	Who else called you?	Whom else did you call?
After a preposition	Usually rephrase or use a preposition at the end	Traditional choice after a preposition
Frequency in conversation	Very common	Less common
Formal correctness	Correct when used as a subject	Correct when used as an object

The key distinction is grammatical function, not formality alone. A formal sentence may require “whom,” but an informal sentence can also use it correctly.

When to Use Each

Choosing between “who else” and “whom else” becomes easier when you examine the role of the person in the sentence.

Use Who Else for the Subject

Ask whether the person is performing the action or being described as the subject.

Examples:

• Who else called the office?
• Who else wants to speak?
• Who else is responsible for this decision?
• Who else understands the instructions?

In these sentences, the answer would typically be a subject pronoun such as he, she, or they.

For example:

“Who else called the office?”

“They called the office.”

Because “they” works as the subject, “who” is the traditional grammatical choice.

Use Whom Else for the Object

Ask whether the person receives the action or follows a preposition.

Examples:

• Whom else did you call?
• Whom else did they select?
• To whom else should I write?
• With whom else are you working?

Consider this question:

“Whom else did you call?”

“I called them.”

Because “them” is the object of the verb, “whom” is the traditional choice.

A Simple Modern English Rule

In casual conversation, “who” is widely used in object positions, too.

For example, “Who else did you invite?” is natural and common. If you are writing formal prose and want to follow traditional grammar closely, “Whom else did you invite?” is also correct.

Remember that a sentence’s grammatical structure matters more than how formal it sounds.

Examples of Who Else vs Whom Else

Here are 16 practical examples showing how both expressions work in different contexts.

Examples of Who Else

1. Who else wants to go shopping?
   The question asks who wants to participate.
2. Who else is coming to the party?
   The person is the subject of “is coming.”
3. Who else knows about the announcement?
   The question asks about additional people who possess the information.
4. Who else can help us finish the assignment?
   “Who” refers to the person who can help.
5. Who else attended the conference?
   The question asks about additional attendees.
6. Who else would like to share an opinion?
   “Who” is the subject of “would like.”
7. Who else lives in this building?
   The question asks about other residents.
8. Who else is responsible for the project?
   The expression identifies another person with responsibility.

Examples of Whom Else

9. Whom else did you invite to dinner?
   The person is the object of “invite.”
10. Whom else should we contact about the problem?
    The person receives the action of contacting.
11. Whom else did the teacher question?
    The person is the object of “question.”
12. To whom else should I address this letter?
    “Whom” follows the preposition “to.”
13. With whom else did you travel abroad?
    “Whom” follows the preposition “with.”
14. For whom else did she prepare a meal?
    “Whom” follows the preposition “for.”
15. Whom else did the committee choose for the position?
    The person receives the action of choosing.
16. About whom else were the students talking?
    “Whom” follows the preposition “about.”

Examples in Everyday English

In ordinary conversation, you might hear:

• “Who else did you see at the mall?”
• “Who else should we invite?”
• “Who else were you talking to?”

These are common, natural constructions. Traditional grammar would use “whom” in the object positions, but modern English frequently favors “who,” particularly when the preposition comes at the end of the sentence.

Common Mistakes

Even fluent English speakers sometimes confuse subject and object pronouns. Here are some mistakes to avoid.

Mistake 1: Assuming Whom Else Is Always More Correct

Incorrect assumption: “Whom else” is always more grammatical because it sounds formal.

Correction: The correct choice depends on the grammatical role of the pronoun. Use “who” when it functions as a subject and “whom” when it functions as an object under traditional rules.

• Correct: Who else wants to join?
• Correct: Whom else did you invite?

Mistake 2: Using Whom Else as the Subject

Incorrect: Whom else wants to participate?

Correct: Who else wants to participate?

The pronoun is the subject of “wants,” so “who” is the traditional choice.

Mistake 3: Thinking Who Else Is Always Wrong as an Object

Incorrect assumption: “Who else did you invite?” is unacceptable English.

Correction: This sentence is widely accepted in modern English, particularly in conversation. “Whom else did you invite?” is the traditional object-pronoun version.

Mistake 4: Ignoring Prepositions

Compare these constructions:

• Traditional formal usage: To whom else did you speak?
• Natural everyday usage: Who else did you speak to?

Both are understandable, but the first follows the traditional rule of placing “whom” immediately after the preposition.

Mistake 5: Confusing Else With the Pronoun Rule

The word “else” does not determine whether you should use “who” or “whom.” It simply adds the meaning of “another” or “in addition.”

The grammatical role of the person determines the traditional choice.

Memory Trick: How to Remember Who Else vs Whom Else

The easiest way to remember this difference is to replace the pronoun with he/she/they or him/her/them.

• If the answer uses he, she, or they, choose who in traditional grammar.
• If the answer uses him, her, or them, choose whom in traditional grammar.

Try This Simple Test

Question: Who else called you?

Answer: They called me.

“They” is a subject pronoun, so “who” is correct.

Question: Whom else did you call?

Answer: I called them.

“Them” is an object pronoun, so “whom” is the traditional choice.

Memory tip: Who goes with he; whom goes with him.

This simple substitution test works for many questions involving who and whom, including those containing the word “else.”

American vs British English

American and British English generally follow the same traditional grammatical distinction between “who” and “whom.” The main difference you may notice is how frequently speakers use “whom” in everyday conversation.

American English

In American English, “who” is commonly used in both subject and object positions in informal speech.

Examples:

• Who else did you invite?
• Who else should I ask?
• Who else were you talking to?

In formal writing, “whom” may still be preferred when the person is the object of a verb or preposition.

British English

British English also uses “who” frequently in everyday questions, including some traditionally object-related constructions.

Examples:

• Who else is coming?
• Who else did you see?
• Who else were you speaking to?

In more formal British English, constructions such as “To whom else should I write?” remain appropriate.

Is One Expression More Correct in Either Country?

Neither variety changes the central grammatical distinction. “Who else” is not exclusively American, and “whom else” is not exclusively British.

Both expressions are available in both varieties. Context, formality, and sentence structure determine the most suitable choice.

Similar Words and Expressions

Several related expressions help you ask questions about additional people or things.

Who vs Whom

“Who” traditionally functions as a subject pronoun, while “whom” functions as an object pronoun.

• Who called?
• Whom did you call?

Who Else vs Someone Else

“Who else” asks a question about an additional person. “Someone else” refers to another person without necessarily asking a question.

• Who else is coming?
• Someone else is coming.

Whom Else vs Whomever Else

“Whomever” is an object form traditionally used in certain clauses, but its correct use depends on the grammatical role within that clause.

For example: “Invite whomever else you think would enjoy the event.”

In the clause “whomever else you think,” the pronoun functions as the object of “invite” in the larger sentence. The internal structure of the clause can make the choice more complicated, so examine the grammatical role carefully.

Who Else vs What Else

Use “who else” when asking about people. Use “what else” when asking about additional things or information.

• Who else attended the meeting?
• What else do we need to prepare?

Who Else vs Which Other Person

“Which other person” is a longer alternative to “who else.”

• Who else can help?
• Which other person can help?

Both ask about an additional person, but “who else” is generally shorter and more conversational.

Frequently Asked Questions (FAQs)

1. Is “Who Else” Grammatically Correct?

Yes. “Who else” is grammatically correct when asking about an additional person who functions as the subject of a sentence. For example, “Who else wants to participate?” is correct.

2. Is “Whom Else” Correct English?

Yes. “Whom else” is correct when the pronoun functions as the object of a verb or preposition under traditional English grammar. For example, “Whom else did you invite?” is correct.

3. Which Is More Common: Who Else or Whom Else?

“Who else” is much more common in everyday English. Speakers frequently use “who” in object positions, too, especially in informal conversation.

4. Can I Say “Who Else Did You Invite”?

Yes. “Who else did you invite?” is a common and natural question in modern English. Traditional grammar favors “whom else” because the pronoun is the object of “invite,” but the “who” version is widely accepted.

5. Should I Use “Whom Else” in Formal Writing?

Use “whom else” when it functions as an object and you want to follow traditional grammar. However, avoid using it merely to sound sophisticated. A subject still requires “who.”

6. How Can I Quickly Tell Whether to Use Who or Whom?

Replace the pronoun with “they” or “them.” If “they” fits, use “who” in traditional grammar. If “them” fits, use “whom.” For example, “They called” indicates “Who called?” while “I called them” indicates “Whom did you call?”

7. Does British English Prefer Whom Else?

Not as a universal rule. British English retains “whom” in formal constructions, but “who” is also widely used in everyday questions. The same general distinction applies in American English.

Final Verdict

The difference between “who else” and “whom else” comes down to grammatical function. Use “who else” when asking about an additional person who is the subject of the sentence. Use “whom else” when the person is the object of a verb or preposition and you want to follow traditional English grammar.

In modern conversation, “who” is often used in object positions, making questions such as “Who else did you invite?” perfectly natural. In formal writing, choosing “whom” where traditional grammar requires it can demonstrate careful attention to sentence structure. Rather than memorizing isolated phrases, learn to recognize subjects, objects, and prepositions.

Conclusion

Understanding “who else vs whom else” will help you make better choices in English conversations, emails, academic writing, and professional communication. Although both expressions refer to an additional person, “who” traditionally identifies the subject, while “whom” identifies the object. The word “else” adds the idea of another person without changing this grammatical distinction.

For everyday English, “who else” is usually the easiest and most natural option, while “whom else” remains useful in formal constructions. When you are unsure, try replacing the pronoun with “they” or “them.” With regular practice and attention to sentence structure, you can use both expressions confidently and naturally.

Remember This

• Who else: Use for the subject. Example: “Who else is coming?”
• Whom else: Use for the object in traditional grammar. Example: “Whom else did you invite?”
• Modern usage: “Who else did you invite?” is also widely accepted.
• Memory trick: Who = they; whom = them.