The 2005–06 Combined Counties Football League season was the 28th in the history of the Combined Counties Football League, a football competition in England.
| Competition: | Combined Counties Football League Premier Division |
| Season: | 2005–06 |
| Winners: | Godalming Town |
| Promoted: | Godalming Town |
| Relegated: | 5 clubs |
| Matches: | 420 |
| Total Goals: | 1355 |
| Prevseason: | 2004–05 |
| Nextseason: | 2006–07 |
The Premier Division featured one new team in a league of 22 teams after the promotion of Walton Casuals to the Isthmian League.
Also:
| Competition: | Combined Counties Football League Division One |
| Season: | 2005–06 |
| Winners: | Warlingham |
| Promoted: | AFC Wallingford Bookham |
| Matches: | 272 |
| Total Goals: | 1185 |
| Prevseason: | 2004–05 |
| Nextseason: | 2006–07 |
Division One featured four new teams in a league of 17 teams:
Also, Netherne Village changed their name to Netherne.