Lolo Hot Springs (Salish: smtt̓m̓čqi or sntt̓mčqey, "Steam on a Ridge Top" ) is an unincorporated community in Missoula County, Montana, United States. It is centered around a commercial hot springs. It also contains a hotel and restaurant. It is the westernmost settlement along U.S. Highway 12 in Montana.
The Salish name for the surrounding area is q̓ʷlótqne or čmulši.
The first luge run in North America was built here in 1965.
The Lewis and Clark Expedition passed by and used the springs on June 29, 1806 while traveling east on their return from the mouth of the Columbia River.
Coordinates: 46°43′40″N 114°31′50″W / 46.72778°N 114.53056°W / 46.72778; -114.53056