Dogmeat

"'Who's a good boy? Are you a good boy?' ""-- The Stranger greets Dogmeat"Dogmeat is a German Shephard living in the Big Easy in 2279. After he is found by the Stranger and the Companions, they decide to take him on their long journey across the wasteland. Following their encounter with Goris, the group learns that Dogmeat is descended from the same dog that travelled with the Vault Dweller in 2161.

Trivia

 * Dogmeat is a common name for canine companions in the Fallout games.