The 1971–72 Sussex County Football League season was the 47th in the history of Sussex County Football League a football competition in England.[1] [2]
| Competition: | Sussex County Football League Division One |
| Season: | 1971–72 |
| Winners: | Bognor Regis Town |
| Promoted: | Bognor Regis Town |
| Relegated: | Lancing |
| Matches: | 240 |
| Total Goals: | 823 |
| Prevseason: | 1970–71 |
| Nextseason: | 1972–73 |
Division One featured 14 clubs which competed in the division last season, along with two new clubs, promoted from Division Two:
| Competition: | Sussex County Football League Division Two |
| Season: | 1971–72 |
| Winners: | Newhaven |
| Promoted: | Newhaven Sidley United |
| Matches: | 240 |
| Total Goals: | 906 |
| Prevseason: | 1970–71 |
| Nextseason: | 1972–73 |
Division Two featured 14 clubs which competed in the division last season, along with two new clubs, relegated from Division One: