It's Max from the Little Mermaid!

Max is an Old English Sheepdog and is Prince Eric's pet in Disney's The Little Mermaid (1989).

We first meet Max when Ariel and her friends secretly decide to get a closer look at Prince Eric and the other humans. Against her father, King Triton's warnings, they swim to the surface and watch Eric's birthday celebration from the side of the ship.

Max, with his signature shaggy fur covering his eyes, catches Ariel's scent and follows his nose to find her. Ariel gets scared and ducks to hide. When she turns back around, Max is waiting there for her, smiling and panting. He gives her a big kiss on the cheek.

Ariel: Oh... he's very handsome, isn't he?
Scuttle: I don't know, he looks kind of hairy and slobbery to me.

Soon after, the ship catches on fire and Max is left behind to fight against the furious flames. Eric jumps back onto the ship to rescue him.

Perhaps in the best scene of all, Max, the only character in the movie who recognizes Ursula in disguise as the beautiful Vanessa, growls ferociously at her and then later bites her in the butt to help stop the wedding. Three cheers for Max!