John (sometimes "Jack") Claus Voss (born Johannes Claus Vos; 1858-1922) was a Canadian sailor best known for sailing around the world in a modified dug-out canoe he named Tilikum (boat) ("Friend" in Chinook jargon). He started in 1901 with his friend Norman Luxton and ending alone in 1904. He chronicled this and other notable voyages in The Venturesome Voyages of Captain Voss.