1923–24 Southern Football League

The 1923–24 season was the 26th in the history of the Southern League. The league was split into Eastern and Western Divisions. Peterborough & Fletton United won the Eastern Division and Yeovil & Petters United won the Western Division. Yeovil were declared Southern League champions after defeating Peterborough 3–1 in a championship play-off. No clubs applied to join the Football League this season, and no clubs left the league at the end of the season.

Eastern Division
A total of 16 teams contest the division (previously called the English section), including 10 sides from previous season and six new teams.

Newly elected teams:
 * Peterborough & Fletton United
 * Folkestone
 * Kettering
 * Bournemouth & Boscombe Athletic II (replacing their first team, which had been promoted to the Football League the previous season)
 * Leicester City II
 * Northampton Town II

Western Division
A total of 18 teams contest the division (previously called the Welsh section), including 6 sides from previous season, 8 teams transferred from English section and four new teams.

Teams transferred from 1922–23 English section: Newly elected teams:
 * Bath City
 * Torquay United
 * Yeovil & Petters United
 * Bristol City II
 * Bristol Rovers II
 * Exeter City II
 * Plymouth Argyle II
 * Swindon Town II
 * Llanelly
 * Weymouth - (newly elected from the Western League)
 * Cardiff City II
 * Newport County II