1908–09 Southern Football League

Southern Football League Division Two
Season	1908–09
Champions	Croydon Common
Promoted	Croydon Common
Relegated	Depot Battalion RE (resigned) 2nd Grenadier Guards (resigned)
Matches played	42
Goals scored	214 (5.1 per match)
← 1907–08 1909–10 →

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.

A total of 20 teams contest the division, including 19 sides from previous season and one new team.

Team promoted from 1907-08 Division Two:

Newly elected teams:

^{1 The system of using goal average to separate two teams tied on points was used until the 1976-77 season.}

^{2 The points system: 2 points for a win, 1 point for a draw and 0 points for losing.}

A total of seven teams contest the division, including 3 sides from previous season and four new teams, all of them are newly elected teams.

Newly elected teams:

^{1 The system of using goal average to separate two teams tied on points was used until the 1976-77 season.}

^{2 The points system: 2 points for a win, 1 point for a draw and 0 points for losing.}