Dogs are animals that appear in Wii Sports Resort in the Frisbee Dog tournament and in Wii Fit. Each player gets a different color dog. The dogs love tennis balls, and they stole all of them from the tennis courts of Cocoba Hotel. At Wuhu Island, the dogs are very pampered.

Dogs made their return in another Wii Fit series installment, Wii Fit Plus, as customizable pets, like the cats.

In Wii Fit, dogs lead Miis in jogging activities. If your Mii runs past its dog, and there is a faster dog ahead, it is assigned the new, faster dog.