Who vs Whom: Meaning, Difference, Rules, and Examples

Many English learners get confused about who vs whom. The two words look similar, but they do not have the same job in a sentence.

The easiest rule is simple:

Use “who” when the person is doing the action. Use “whom” when the person receives the action.

In grammar terms, who is a subject pronoun, while whom is an object pronoun.

For example:

• Who called you?
• Whom did you call?

In the first sentence, who is doing the calling. In the second sentence, whom receives the action of the verb call.

This guide explains the difference between who and whom, gives easy examples, and shows you a simple trick to choose the correct word.

Also read this: Disorganized vs Unorganized: What’s the Difference?

Who vs Whom: Quick Answer

The difference between who and whom depends on the role of the person in the sentence.

Use who for the subject of a sentence.

Use whom for the object of a verb or preposition.

Here is a simple comparison:

Word	Grammar Role	Example
Who	Subject	Who sent the message?
Whom	Object	Whom did you invite?

A quick way to remember this is:

Who = he/she

Whom = him/her

If he or she sounds correct in the answer, use who.

If him or her sounds correct, use whom.

What Does “Who” Mean?

Who is used when asking about or referring to the person who performs an action.

It works as the subject of a verb.

For example:

Who opened the door?

The person is doing the action of opening.

Another example:

Who wants some coffee?

Here, who is the person who wants the coffee.

More examples include:

• Who wrote this book?
• Who is coming to the meeting?
• Who called me last night?
• Who made this cake?
• Who knows the answer?

In all these sentences, who represents the person doing something.

What Does “Whom” Mean?

Whom is used when the person receives an action or comes after a preposition.

It works as an object in the sentence.

For example:

Whom did you invite to the party?

You invited someone. That person receives the action.

Another example is:

To whom should I send this email?

Here, whom comes after the preposition to.

More examples include:

• Whom did she meet?
• Whom are you looking for?
• With whom are you travelling?
• To whom were you speaking?
• Whom should we choose?

These sentences use whom because the person is the object.

The Easy He or Him Trick

One of the easiest ways to understand who vs whom is to use the he or him test.

Use who if the answer could be he.

Use whom if the answer could be him.

Look at this question:

Who called you?

Possible answer:

He called me.

Because he sounds correct, use who.

Now look at this question:

Whom did you call?

Possible answer:

I called him.

Because him sounds correct, use whom.

You can remember it this way:

Who → He

Whom → Him

Both whom and him end with the letter m, which can make the rule easier to remember.

Who vs Whom Examples

Examples are one of the best ways to learn the difference.

Examples with “Who”

Who is your teacher?

The person is the subject.

Who broke the window?

The person performed the action.

Who wants to join us?

The person is doing the wanting.

Do you know who called?

The person performed the action of calling.

Examples with “Whom”

Whom did you see yesterday?

You saw someone, so the person is the object.

Whom should we invite?

We should invite someone.

For whom did you buy the gift?

The person comes after the preposition for.

Whom are they talking about?

They are talking about someone.

Who or Whom Should I Contact?

A common question is:

Who or whom should I contact?

In traditional formal grammar, the correct form is:

Whom should I contact?

This is because you contact him, not he.

For example:

I should contact him.

Because him is correct, whom is grammatically correct.

However, in everyday English, many people say:

Who should I contact?

This form is very common in normal conversation and informal writing.

In formal writing, whom should I contact? is still the more traditional choice.

Who Did You Speak To or Whom Did You Speak To?

Both forms may appear in modern English.

The more formal version is:

Whom did you speak to?

An even more formal version is:

To whom did you speak?

In casual conversation, most people say:

Who did you speak to?

So the choice often depends on the situation.

For formal writing, use whom when it is the object.

For everyday speech, who is often accepted and sounds more natural.

With Who vs With Whom

The traditional grammatical form is:

With whom

For example:

With whom are you going to the event?

The word whom follows the preposition with.

However, casual English often uses:

Who are you going to the event with?

This version sounds more natural in everyday speech.

For professional, academic, or formal writing, with whom may be the better choice.

To Who vs To Whom

The traditionally correct form is:

To whom

For example:

To whom should I address the letter?

The pronoun comes after the preposition to, so whom is used.

In casual English, people may say:

Who should I address the letter to?

This is very common in conversation.

When Should You Use Who?

Use who when the person is the subject of the verb.

Ask yourself:

Who is doing the action?

Examples:

• Who sent the email?
• Who answered the phone?
• Who teaches this class?
• Who won the game?
• Who needs help?

In each case, the person represented by who performs the action.

When Should You Use Whom?

Use whom when the person receives the action.

You should also use whom after a preposition in formal English.

Examples:

• Whom did you call?
• Whom did they choose?
• To whom should I complain?
• With whom did she travel?
• For whom is this package?

A useful question is:

Is the person doing the action or receiving it?

If the person receives the action, whom may be correct.

Is “Whom” Still Used Today?

Yes, whom is still correct English, but it is less common in everyday conversation.

Many native speakers use who instead of whom in informal speech.

For example, people commonly say:

Who did you meet?

Traditional grammar prefers:

Whom did you meet?

The first version sounds more natural to many modern speakers.

You are more likely to see whom in formal writing, business communication, academic writing, official documents, and sentences where a preposition comes before the pronoun.

Examples include:

To whom it may concern

and

The person with whom I spoke was very helpful.

Common Mistakes with Who and Whom

One common mistake is using whom simply because it sounds more formal.

For example:

Whom is calling me?

This is incorrect.

The correct sentence is:

Who is calling me?

The person is doing the calling, so who is needed.

Another mistake is using who after a preposition in very formal writing.

For example:

To who should I send this?

In formal English, write:

To whom should I send this?

Do not choose whom because it sounds impressive. Choose it because the person is functioning as the object.

Who vs Whom in Relative Clauses

The same rule also applies inside relative clauses.

Example:

The woman who called me is my teacher.

The woman performed the action, so use who.

Now compare:

The woman whom I called is my teacher.

I called the woman, so she receives the action. That makes whom correct.

Another example:

The student who won the prize is absent today.

The student won the prize.

But:

The student whom the teacher praised was happy.

The teacher praised the student.

A Simple Way to Remember Who vs Whom

You do not need to make the rule complicated.

Remember these two lines:

Who does the action.

Whom receives the action.

You can also use the he/him test:

He = who

Him = whom

If you remember these simple rules, choosing between who and whom becomes much easier.

Who vs Whom FAQs

Also read this: Laid Out vs Layed Out: Which Is Correct?

Final Thoughts

The difference between who vs whom becomes simple once you understand their jobs.

Use who when the person performs the action.

Use whom when the person receives the action or follows a preposition in formal English.

If you are still unsure, use the he/him trick.

If he works, choose who.

If him works, choose whom.

For example:

Who called? → He called.

Whom did you call? → I called him.

In everyday English, people often use who instead of whom. But knowing the difference helps you write more clearly and use correct grammar when formal English is required.