Acharnaikos Football Club (Greek: Α.Ο. Αχαρναϊκός) is a Greek football club based in Acharnes (Menidi area), Athens, Greece. It was created in 1938 and was founded in 1953. The club was known as Yperochi Menidi until 1961. It plays in Acharnes Stadium, which has a 4,450 seating capacity. The club´s logo is a cloverleaf with two alphas in the left and top and an omicron at the right.
Acharnaikos competes in the Football League, the second division of the Greek football league system. However, in November 2017 it was expelled from the league for the 2017–2018 season for failure to pay players. 40 players were subsequently released.