Dog may refer to:
- Duck Hunt, a playable character duo and stage hazard in Super Smash Bros. 4 and Super Smash Bros. Ultimate which consists of a duck and dog.
- Isabelle, a Shih Tzu character who is an Assist Trophy in Smash 4 and playable fighter in Ultimate.
- Nintendog, an Assist Trophy in Super Smash Bros. Brawl, SSB4, and Ultimate and background character on the Living Room stage.
- Boney, Lucas' dog from Mother 3 who appears in his Final Smash as of Ultimate.
- Rush, Mega Man's robot dog who appears in his up special.
- Hot dog, a type of food that appears as a healing item in Smash 4 and Ultimate, as well as a stage hazard on the WarioWare, Inc. stage in Brawl, the 3DS version of Smash 4, and Ultimate.
- Corn dog, a type of food that appears as a healing item in Ultimate.
- Dog w/ Hips, a smasher from Alabama.
- Dogs_Johnson, a smasher from Indiana.
- DOGG, a smasher from Colorado.