The Cypriot Second Division (Greek: Πρωτάθλημα Β΄ Κατηγορίας) is the second highest football division of the Cypriot football league system.
Administered by the Cyprus Football Association, it is contested by 16 teams, with the top three teams being promoted to the Cypriot First Division and the last three teams being relegated to the Cypriot Third Division.
The Cypriot Second Division started unofficially the 1934–35 football season as the second level of the Cypriot football (Cyprus Football Association founded in 1934). The competition consisted of teams that didn't participate in Cypriot First Division and the reserve teams of the Cypriot First Division clubs. In the reserve teams were allowed to participate only players that had no more than three caps with their team in First Division. The reserve teams won all the titles of the unofficial period.
The first official second division championship was held in the 1953–54 season, after the unification of Cypriot Football, without the presence of the reserve teams. From that season, the reserve teams were participate in the new Reserve Teams Championship.
Almost every team that participated and still participate in the Cypriot First Division had also participated in the Second Division, with only exceptions to be APOEL and Omonia. Pezoporikos Larnaca and Trust were also two teams that never played to Second Division but both do not exist anymore. Çetinkaya Türk also never participated in Second Division but the team withdrew from CFA in 1954. Many teams with multiple participations in the Cypriot First Division had also played in the Second Division, like AEL Limassol, Nea Salamis Famagusta, Apollon Limassol, Olympiakos Nicosia, AEK Larnaca, Enosis Neon Paralimni and EPA Larnaca.
Anorthosis Famagusta also participated in the Second Division during 1945–46 season (unofficial competition), because they withdrew from CFA eight years earlier and disbanded their football team. After their reform and their re-integration in the CFA, they were forced to play in the Second Division in order to be promoted to the First Division. It was the only time from the unofficial period of the competition that a team promoted from the Second Division to the First Division.
Since 1952–53 season, the second Division teams took part in the Cypriot Cup, except of the 1963–64 season. In some seasons during the 1960s and 1970s only the leading teams of the Second Division took part (some times only the champion) in the competition. From 1975–76 season all the teams of the Cypriot Second Division take part in the Cypriot Cup. No Second Division team ever reach the final but they qualified for the semi-finals four times (Nea Salamis Famagusta in 1953–54, Orfeas Nicosia in 1983–84, PAEEK in 1984–85 and AEP Paphos in 2005–06).