Atoka is a town in Tipton County, Tennessee, United States. The population was 3,235 at the 2000 census. World War I Medal of Honor recipient Joseph B. Adkinson is buried there.
Atoka is located at 35°25′29″N 89°46′58″W / 35.42472°N 89.78278°W / 35.42472; -89.78278 (35.424740, -89.782652).
According to the United States Census Bureau, the town has a total area of 6.7 square miles (17.3 km²), all of it land.