MV Spirit of British Columbia is an S-class ferry, part of the BC Ferries fleet active along the British Columbia coast. It and Spirit of Vancouver Island represent the two largest ships in the fleet. The ship was completed in 1993 and serves the Tsawwassen–Swartz Bay route. In 2018, it underwent a mid-life refit that included conversion to a dual-fuel system that allows it to use either marine diesel oil or liquefied natural gas.