Can you change a puppy's name if you buy it on the internet?

You can change a puppy's name regardless of where you get him. However, if he is a purebred puppy his registered name cannot be changed once he is registered and only the puppy's breeder can do that.

Very few dogs are addressed by their registered names which are long. They usually have every day names that might be related to their registered name or might not.

now you keep saying the name that you want the puppy to have eventually the puppy will learn the name and will answer to it.