S-class ferries are roll-on/roll-off (RORO) ferries operated by BC Ferries in British Columbia, Canada. They are the largest ferries in the BC Ferries fleet. The class comprises two ships, Spirit of British Columbia and Spirit of Vancouver Island, which were completed in 1993 and 1994 respectively. They serve the ferry route between Tsawwassen and Swartz Bay. In 2017, the class underwent conversion to a dual-fuel propulsion system that would allow them to use either marine diesel fuel or liquefied natural gas.

The V-class ferries, also known as the Victoria class, originally included seven ferries operated by BC Ferries built between 1962 and 1965. The V class were a continuation of the previous Sidney-class design with some cosmetic changes and different engines. These vessels were the backbone of service on the Tsawwassen – Swartz Bay route prior to the arrival of MV Spirit of British Columbia in 1993. Four of these vessels underwent vehicle capacity increases three times. The lead ship of the class, Queen of Victoria suffered significant damage in a collision in 1970.