1979–80 Southern Football League

The 1979–80 Southern Football League season was the 77th in the history of the league, an English football competition. At the end of the previous season the Alliance Premier League was established as a new, national top division of non-League football. Thirteen clubs from the Premier Division joined the new league, leading to a restructuring of the Southern League for this season, in which it was divided solely into Midland and Southern divisions. Bridgend Town won the Midland Division, whilst Dorchester Town won the Southern Division. Bridgend were declared Southern League champions after defeating Dorchester 3–0 at home and 2–1 away to win a championship play-off. There was no promotion to the Alliance Premier League and no relegation to feeder leagues.

1979–80 Southern Football League

The 1979–80 Southern Football League season was the 77th in the history of the league, an English football competition. At the end of the previous season the Alliance Premier League was established as a new, national top division of non-League football. Thirteen clubs from the Premier Division joined the new league, leading to a restructuring of the Southern League for this season, in which it was divided solely into Midland and Southern divisions. Bridgend Town won the Midland Division, whilst Dorchester Town won the Southern Division. Bridgend were declared Southern League champions after defeating Dorchester 3–0 at home and 2–1 away to win a championship play-off. There was no promotion to the Alliance Premier League and no relegation to feeder leagues.