1908–09 Southern Football League

The 1908–09 season was the 15th in the history of Southern Football League. Northampton Town won Division One and Croydon Common finished top of Division Two. No clubs applied for election to the Football League.

Division One
A total of 21 teams contested the division, including 18 sides from previous season and three new teams.

Team promoted from 1907–08 Division Two: Newly elected teams:
 * Southend United
 * Exeter City
 * Coventry City

Division Two
A total of seven teams contested the division, including three sides from the previous season and four newly elected teams.

Newly elected teams:
 * 2nd Grenadier Guards
 * Chesham Town
 * Depot Battalion RE
 * South Farnborough Athletic