Aetna is an unincorporated community in Barber County, Kansas, United States. It lies at an elevation of 1631 feet (497 m).
The Aetna fire station burned down in 1916 due to a grass fire. The post office was discontinued in 1946.[1] The school on the west side of the road across from the town, grades 1 through 8, closed in 1964.