Lost Cabin is an unincorporated community in Fremont County, Wyoming.
A post office called Lost Cabin was established in 1886, and remained in operation until 1966. The community received its name from a pioneer incident in which a party of prospectors escaped from Indians, only to find later their cabins had disappeared from the site.
Coordinates: 43°17′11″N 107°37′57″W / 43.28639°N 107.63250°W