Minnesota State Highway 117 (MN 117) is a short 1.797-mile-long (2.892 km) highway in west central Minnesota, which runs from Roberts County Road 19 at the South Dakota state line and continues east to its eastern terminus at its intersection with MN 27 near Wheaton.

MN 117 passes through Lake Valley Township.

Highway 117 serves as a short east–west connector route between Lake Traverse at the Minnesota / South Dakota state line and Minnesota State Highway 27.

The route is legally defined as Route 191 in the Minnesota Statutes.

[4] The entire route is in Lake Valley Township, Traverse County.