House’s three-legged dog in House M.D. is named Hector.
Hector appears in the series as House’s pet and is notable for having only three legs. The dog is part of the character’s life away from the hospital, where House’s interactions with animals often provide quieter and less confrontational moments than his relationships with colleagues.
The name is easy to confuse with Wilson, because Wilson is House’s closest human friend and also the name of a dog connected to another storyline. In House M.D., however, Hector is specifically House’s three-legged dog, while Wilson is primarily the name of Dr. James Wilson.
House’s attachment to animals fits the series’ broader portrayal of him. He often claims to prefer animals or solitary activities to people, yet scenes involving his pets reveal responsibility and affection beneath his cynical exterior. Hector is a small recurring detail rather than a central character, which makes the name a more difficult series fact.