Happys Inn is a census-designated place (CDP) in Lincoln County, Montana, United States. As of the 2020 census, Happys Inn had a population of 179.
Happys Inn has a bar that carries its namesake. The census area extends for down the length of the chain of lakes area of Lincoln County. The community is along U.S. Route 2, southeast of Libby, the Lincoln county seat, and west of Kalispell.
According to the U.S. Census Bureau, the CDP has a total area of , of which are land and , or 21.22%, are water.
Libby 32 SSE is a weather station near Happy's Inn, situated at an elevation of 3440 feet (1049 m).