In Lost, what was the name of the boat used by Desmond Hume?

Desmond Hume’s boat in Lost was named Elizabeth.

Desmond uses the sailboat Elizabeth during his attempt to circumnavigate the globe. He is shipwrecked on the island after a storm, where Kelvin Inman finds him and brings him into the Swan station.

The boat’s name is a reference to Elizabeth, the woman Desmond loved before he entered the monastic life and later joined the sailing race. Desmond’s backstory connects the vessel to his failed effort to prove himself to Charles Widmore, Penny’s disapproving father.

Elizabeth is not the same vessel as the Black Rock, the historic slave ship that reaches the island, or the Kahana, the freighter sent by Widmore’s people. Those ships belong to different eras and storylines in Lost.