In Lost, what was the name of the dog owned by Walt Lloyd?

Walt Lloyd’s dog in Lost was named Vincent.

Vincent is a yellow Labrador retriever who survives the crash of Oceanic Flight 815. He originally belongs to Walt, and the dog becomes one of the first living things seen after the crash when he runs through the wreckage and jungle.

Although Vincent is not human, he appears throughout the series and often moves between storylines involving different survivors. His presence gives the show a recurring emotional link to Walt, even after Walt leaves the island.

Vincent is also important in the series finale. The dog finds an unconscious Jack in the jungle and later lies beside him as Jack watches the Ajira plane leave. Viewers sometimes mistake Vincent for a dog belonging to another survivor, but he is specifically Walt’s pet.