The 1991–92 North West Counties Football League season was the tenth in the history of the North West Counties Football League, a football competition in England. Teams were divided into two divisions: Division One and Division Two.
| Competition: | North West Counties Football League Division One |
| Season: | 1991–92 |
| Winners: | Ashton United |
| Promoted: | Ashton United Great Harwood Town |
| Relegated: | Bootle |
| Matches: | 306 |
| Total Goals: | 907 |
| Prevseason: | 1990–91 |
| Nextseason: | 1992–93 |
Division One featured three new teams, promoted from Division Two:
| Competition: | North West Counties Football League Division Two |
| Season: | 1991–92 |
| Winners: | Bamber Bridge |
| Promoted: | Bamber Bridge Blackpool Mechanics Burscough Chadderton Glossop Kidsgrove Athletic Newcastle Town Salford City |
| Relegated: | None |
| Matches: | 306 |
| Total Goals: | 991 |
| Prevseason: | 1990–91 |
| Nextseason: | 1992–93 |
Division Two featured three new teams: