Sporting Clube Campomaiorense more commonly known as Campomaiorense is a Portuguese football club from Campo Maior, Portalegre District. The club was founded on the 1 July 1926. The club currently plays at the Estádio Capitão Cesar Correia which holds a seating capacity of 7500. The club has played in Portugal's top football division, the Primeira Liga for five seasons and reached the 1999 Taça de Portugal final.
Campomaiorense is part of the Portalegre Football Association which is the football association in charge of the Portalegre district's football matters. In its entire history the club has won eight major trophies: the Portuguese Second Division in the 1991–92 season, the Liga de Honra in the 1996–97 season, the AF Portalegre First Division on four occasions (1962–63, 1969–70, 1971–72, 2011–12), the Campeonato de Portalegre in 1946 and the AF Portalegre Supertaça in the 2011–12 season.