Oma is a town in Iron County, Wisconsin, United States.

The unincorporated communities of Pine Lake and Van Buskirk are located in the town.

There were 542 housing units at an average density of 7.3 per square mile (2.8/km2).

The racial makeup of the town was 98.31% White, 0.56% Native American, 0.28% Asian, and 0.85% from two or more races.

24.4% of all households were made up of individuals, and 9.0% had someone living alone who was 65 years of age or older.