| Competition: | North West Counties Football League |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
The 1984–85 North West Counties Football League was the third in the history of the North West Counties Football League, a football competition in England. Teams were divided into three divisions.
| Competition: | North West Counties Football League Division One |
| Season: | 1984–85 |
| Winners: | Radcliffe Borough |
| Promoted: | Caernarfon Town |
| Relegated: | Lancaster City |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division One featured 2 new teams:
| Competition: | North West Counties Football League Division Two |
| Season: | 1984–85 |
| Winners: | Clitheroe |
| Promoted: | Clitheroe Irlam Town |
| Relegated: | Padiham |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division Two featured 4 new teams:
| Competition: | North West Counties Football League Division Three |
| Season: | 1984–85 |
| Winners: | Kirkby Town |
| Promoted: | Kirkby Town Colwyn Bay |
| Prevseason: | 1983–84 |
| Nextseason: | 1985–86 |
Division Three featured 3 new teams:
Caernarfon Town moved to the Northern Premier League while Lancaster City were relegated to Division Two.
Division Two champions Clitheroe and second placed Irlam Town were promoted to Division One while Padiham were relegated to Division Three.
Division Three champions Kirkby Town and second placed Colwyn Bay were promoted to Division Two while Urmston Town, Lytham and Ashton Town left the League at the end of the season and were replaced by newly admitted Huyton Town. Oldham Dew changed their name to Oldham Town.