Who’s vs Whose: What’s the Difference? (With Examples + Quiz)

Confused about who’s vs whose? This guide explains the difference, with clear examples, a memory trick, and a quiz to test yourself. Who’s and whose sound identical, but they follow the same pattern as your/you’re and its/it’s: the one with the apostrophe is a contraction, and the one without it shows ownership.

Many learners hesitate over this pair, especially in questions. Once you learn the expansion test — can you replace it with “who is” or “who has”? — the choice becomes automatic.

What Does ‘Who’s’ Mean?

Who’s is a contraction of “who is” or “who has.” The apostrophe marks the missing letters.

• Who’s coming to dinner tonight? (Who is)
• Who’s that man over there? (Who is)
• Who’s taken my umbrella? (Who has)
• Do you know who’s going to win? (Who is)

If you can expand the word and the sentence still makes sense, who’s is correct.

What Does ‘Whose’ Mean?

Whose is a possessive word. It asks or states who something belongs to.

• Whose bag is this on the chair?
• The girl whose bike was stolen reported it to the police.
• Whose turn is it to wash the dishes?
• I wonder whose idea this brilliant plan was.

Whose always connects to ownership — it is followed by a noun (whose bag, whose turn) or used in a clause about belonging.

The Memory Trick

Use the apostrophe rule you already know: an apostrophe means letters are missing, not ownership. Who’s is missing letters from “who is” or “who has.” Whose, like his, hers, and its, shows ownership with no apostrophe at all. Apostrophe = contraction, no apostrophe = ownership. The same rule also explains your/you’re and its/it’s, so learning it once helps you three times.

Who’s vs Whose: Side-by-Side Comparison

Feature	Who’s	Whose
Job	Contraction	Possessive word
Meaning	Who is / Who has	Belonging to whom
Example	Who’s there?	Whose coat is this?
Test it	Expand to “who is” or “who has”	Replace with “to whom does this belong”
Apostrophe?	Yes	No

Common Mistakes

❌ Whose going to the party?
✅ Who’s going to the party?

❌ Who’s book is this?
✅ Whose book is this?

❌ Do you know who’s car that is?
✅ Do you know whose car that is?

❌ Who’s dog is barking outside?
✅ Whose dog is barking outside?

Quick Quiz

Fill in the blank with who’s or whose in each sentence. Answers are given below.

1. ______ sitting next to you?
2. ______ jacket is hanging by the door?
3. The boy ______ dog won the prize was thrilled.
4. ______ taken the last slice of pizza?
5. ______ idea was it to build a treehouse?

Answers: 1. Who’s | 2. Whose | 3. whose | 4. Who’s | 5. Whose

FAQ

How do I know if who’s means “who is” or “who has”?

Look at the verb that follows. “Who’s going” means “who is going” (present continuous), while “Who’s gone” means “who has gone” (present perfect). Context tells you which one fits.

Can “whose” refer to things, not just people?

Yes. Whose can show ownership for animals and things too: “the house whose roof was damaged” is perfectly correct, though some writers prefer “of which” in very formal writing.

Is “whose” ever a contraction?

No. Whose is never a contraction and never takes an apostrophe. If you see “who’s,” it is always short for “who is” or “who has.”

What is the difference between whose and who’s in a question?

“Who’s” asks about identity or action: “Who’s there?” “Whose” asks about ownership: “Whose keys are these?” The question word itself tells you what information is being asked for.

Conclusion

The pattern is beautifully consistent: who’s = who is / who has, and whose = belonging to whom. Run the expansion test before you write — if “who is” fits, keep the apostrophe; if it doesn’t, drop it — and you will never confuse this pair again.

Continue with these guides: Its vs It’s, Your vs You’re, and Neice or Niece. For a deeper look at formal definitions, check the dictionary entry for whose to see how the word is used in different contexts.