Lost Lake Woods is an unincorporated community and census-designated place (CDP) in Alcona County in the U.S. state of Michigan.

Lost Lake Woods is a private community with control of over 11,000 acres (45 km2) of woodlands.

The racial makeup of the CDP was 99.41% White, 0.29% Native American, and 0.29% from two or more races.

31.2% of all households were made up of individuals, and 23.8% had someone living alone who was 65 years of age or older.

Lost Lake Woods is served entirely by Alcona Community Schools.