The 1906–07 season was the 13th in the history of Southern League. Fulham won Division One for a consecutive title and were elected to the Football League. No other teams were applied for election to the Football League. Southend United won Division Two, but there was no promotion or relegation between the divisions.[1]
| Competition: | Southern Football League Division One |
| Season: | 1906–07 |
| Winners: | Fulham (2nd title) |
| Promoted: | none |
| Relegated: | none |
| Matches: | 380 |
| Total Goals: | 1035 |
| Prevseason: | 1905–06 |
| Nextseason: | 1907–08 |
A total of 20 teams contest the division, including 18 sides from previous season and two teams promoted from Division Two.
Teams promoted from 1905–06 Division Two:
| Competition: | Southern Football League Division Two |
| Season: | 1906–07 |
| Winners: | Southend United |
| Promoted: | none |
| Relegated: | West Ham United II (resigned) Fulham II (resigned) Reading II (resigned) Royal Engineers Aldershot (resigned) |
| Matches: | 132 |
| Total Goals: | 513 |
| Prevseason: | 1905–06 |
| Nextseason: | 1907–08 |
A total of 12 teams contest the division, including 8 sides from previous season and four new teams, all of them are newly elected teams.
Newly elected teams:
Only one Southern League club, Fulham, applied for election to Division Two of the Football League. They offered midland clubs £15 and northern clubs £20 in expenses for travelling to London and were successful, topping the ballot, and replaced Burton United in the League.[2]