Loss Creek is a river in the Capital Regional District of British Columbia, Canada.

Located on southern Vancouver Island, it flows through a long, steep-sided valley to the Strait of Juan de Fuca on the Pacific Ocean.

[2] This valley is the surface trace of the Leech River Fault, a major regional fault that marks the contact between the oceanic basalts of the Crescent Terrane (part of Siletzia) to the south, and the metamorphic rocks of the Pacific Rim Terrane to the north.

[4] Loss Creek begins at an unnamed confluence at a point north of the settlement of Jordan River at an elevation of 507 metres (1,663 ft).

It then turns south for 2 kilometres (1.2 mi), flows under a suspension bridge carrying the Juan de Fuca Marine Trail,[7] and ends at the Strait of Juan de Fuca on the Pacific Ocean, east of Sombrio Point[8] and south east of the settlement of Port Renfrew.