Lost Creek (Grindstone Creek tributary)

Lost Creek is a stream in DeKalb and Gentry counties in the U.S. state of Missouri.It is a tributary of Grindstone Creek.

The stream headwaters are at 40.10278°N, -94.48083°W and the confluence with Grindstone Creek is at 39.88611°N, -94.24056°W.

According to tradition, the creek was named for an incident when a party of soldiers were lost during a blizzard near the creek.