Alpha is an unincorporated community in Kingfisher County, Oklahoma, United States. Its altitude is 1165 feet (355 m). The post office was established November 7, 1893, and closed December 14, 1903. The Alpha site is 5½ miles east of Omega.
The Alpha school district closed in 1947. The Alpha Schoolhouse, the last structure in Alpha, was moved to the Frontier Country Historical Society Museum in Crescent in 2005.