What is Grammatical Correct; Who’s Dog is This Or Whose Dog?

As we introduce the peculiarly complex pronoun first; “who”. Which presents itself in different forms and has had daring souls cower in the attempt to use it correctly. “Who” can be identified with a subject pronoun like she, he, I, or they. But it is the interrogative method used for animate subjects. 

Simply put, it is used to ask questions about a person involved in an action or someone. “Who’s” and “whose” both originate from the pronoun “who”. Both words sound the same, meaning that they are homophones but they have very different meanings. 

What is Grammatical Correct; Who’s Dog is This Or Whose Dog?

“Who’s” is a contraction made up of two words “who” and “is’ ‘ or “who” and “has”. You use “whose” when you could say “who is” or “who has” in a different circumstance. For instance, “Who is going to the museum?” could become “who’s going to the museum?”

While “whose” is a possessive pronoun. It is used to inquire about the owner of an object or make requests for something. And, “whose” bears a striking relationship to “whom”. For instance, “whose car is this?” is another way of saying “to whom does this car belong to?”

A sentence with “Who’s dog is this?” is synonymous to saying “who has dog is this?” Or “Who is dog is this?” And both sentences can’t be ascribed to being grammatically accurate. “Whose dog?” is saying “Who owns this dog?” Or “to whom does this dog belong?”. It defines possessiveness attributed to it.

 “Who’s that dog” is usually not a question we’ll ask on a normal day like “who’s she?”  But, it is grammatically correct. “Who’s that dog” would only commonly be misused or otherwise misinterpreted as a form of insult to someone.

One could probably ask “who’s that dog?” and the response could be “this is Joey, my cute little puppy.” Because the question is asked to know the identity of the dog. It doesn’t have the same meaning as “Whose dog is that?”

“Whose that dog” has no meaning in English. The sentence would be “Who is that dog?” Even though, the best way of composing the sentence would be “whose dog is that?” 

Who’s vs. Whose

Both who’s and whose come from the pronoun who. Who’s is a contraction linking two words together, meaning it fuses two words together. The formula: “who + is”, or “who + has”.

For example “who’s hungry?”+ “who is hungry?”, “who’s the owner of the bar?”+ “who is the owner of the bar?”, “who’s kid that on the drive way?”+ “who is the kid on the driveway?”

Whose is a possessive pronoun. Use it when you’re asking (or telling) to whom something belongs. For example: whose sandwich is this?

When do you use who’s?

The first thing to figure out when deciding between who’s vs. whose is whether you need one word (whose) or two (who’s). Substitute the words who is, (and then who has) into your sentence. If either substitution works: who’s is your word. Who’s is a contraction of who is or who has.

A contraction is a shortened form of two or more words where the omitted letter (or letters) is replaced by an apostrophe.

So, when the bears in Goldilocks and the Three Bears ask each other “Who’s been sitting in my chair?”, it can also be interpreted as “who has been sitting on my chair?” And, if you’re wondering, “Who’s going to write these words with more confidence?”, we hope that the answer to who is patting themselves on the back right now is you.

When do you use whose?

The word “whose” is possessive, and it is often used as an adjective, it is a word that describes or clarifies a noun or a pronoun. So, in this case, whose is a possessive adjective, because it describes who owns something.

Traditionally, which was only used to describe a person or several persons, as in “Sarah, whose dog is cute, just arrived.” In this case, which indicates which person’s (Sarah’s) dog we’re talking about.

Imagine it’s raining and you grab an umbrella, only to realize later that it isn’t yours. You might ask your friend “Whose umbrella is this?” In other words, you’re asking who owns the umbrella.

Over time, it’s become grammatically acceptable to use whose to describe things belonging to inanimate objects and places, as well. “New York is a city whose lights burn brightly all night long.” Here, the lights belong to the city.



Saying “who is” and “who has” out loud as you read or write is one way of getting acquainted familiar with its application either in a written statement or verbally,and whether to use “whose” or “who’s” in a sentence. If “Who is” or “who has” is meaningful in the sentence, use “who’s”. But, if it isn’t, “whose” is the appropriate one.

Note that it is an exceptionally tricky pronoun but you have to trick yourself into communicate the most believable and accurate one.


Whose is a possessive pronoun. This simply means that it is followed by a noun. If the sentence has a noun immediately after the whose or who’s, whose is most likely the correct one. If there’s no noun or an article, you should use who’s.