Are you confused about who and whom? You are not alone. Many people, even native speakers, make mistakes.
Who and whom both talk about people, but we use them differently. Using the wrong one can make your writing sound strange.
People search for “who or whom” to get quick answers. They want to write emails, posts, essays, and papers correctly. This guide will make it easy. We will show you the rules.
Then we will give examples. We will explain where the words come from. We will also show the difference between British and American English. After this, you will always know which word to use.
Who or Whom Quick Answer
- Who → Subject of the sentence (does the action).
- Example: Who called you yesterday?
- Whom → Object of the sentence (receives the action).
- Example: To whom should I address the letter?
Quick tip: Replace the word with they or him/her:
- they → Who
- Him/Her → Whom
The Origin of Who and Whom
Who comes from Old English hwā, meaning “which person.” Whom is from Old English hwām, the dative case, used for objects.
Over many years, ‘whom’ is used less when people talk, but it is still correct in formal writing.
British English vs American English Spelling
Both who and whom are spelled the same in the UK and US, but usage differs slightly:
| Feature | British English | American English |
|---|---|---|
| Who | Common in speech & writing | Very common, even formally |
| Whom | Formal or legal writing | Often replaced by “who” in casual writing |
| Informal speech | Rarely use “whom” | “Who” used universally |
Note: In the US, many avoid whom entirely in casual writing. In the UK, it’s still accepted in formal contexts.
Which Spelling Should You Use?
- US audience: “Who” is usually fine, except in formal letters.
- UK/Commonwealth: Use whom for formal writing or legal documents.
- Global/academic: Stick to traditional rules if you want precise grammar.
Common Mistakes with Who or Whom
- Incorrect: Whom is coming to the party?
Correct: Who is coming to the party? - Incorrect: Who did you give the book?
Correct: Whom did you give the book? - Incorrect: To who should I send this?
Correct: To whom should I send this?
Tip: Use the he/him trick to check.
Who or Whom in Everyday Examples
- Emails: “To whom it may concern” (formal)
- Social media: “Who’s joining the challenge?” (casual)
- News: “The senator, who opposed the bill, spoke today.”
- Essays: “The candidate, to whom the award was given, thanked the committee.”
Who or Whom Google Trends & Usage Data
- Who is searched more than whom worldwide.
- Whom spikes in searches during exams or formal writing guides.
- Most interest comes from US, UK, Canada, Australia, and other English speaking countries.
Keyword Comparison Table
| Keyword | Usage | Formality | Example |
|---|---|---|---|
| Who | Subject | Casual & formal | Who made this decision? |
| Whom | Object | Formal | To whom should I send this? |
FAQs
1. Can I always use who instead of whom?
Yes, in casual writing, “who” often replaces “whom” without sounding wrong.
2. Is whom going out of style?
It’s less common in speech, but still correct in formal contexts.
3. How can I quickly check which to use?
Replace with they (use who) or him/her (use whom).
4. Should I use whom in emails?
For formal emails, yes: “To whom it may concern.” For casual, “who” is fine.
5. Does British English use whom more than American English?
Yes, especially in formal writing and legal documents.
6. Can I start a sentence with whom?
Yes, if it’s grammatically correct, e.g., “Whom did you see at the event?”
7. Are there exceptions to the rules?
Some informal sentences naturally drop whom and use who, especially in modern English.
Conclusion
Who and whom are easy to understand. Who is the subject. Whom is the object. You can use the he/him trick to remember.
In everyday writing, most people just use who. But in formal letters, essays, or legal writing, whom is better. British English uses whom more.
American English prefers simple style. Using who and whom correctly makes your writing clear and professional.

Grace Dalton is a talented author at xnamez.com, known for her deep expertise in the world of names. She blends creativity and meaning to uncover the stories behind every name, helping readers find inspiration and identity through her insightful work. As a true expert in names, Grace brings a unique perspective that connects culture, personality, and individuality in every piece she writes.