Welsh Alliance League
| Founded | 1984 |
|---|---|
| Folded | 2020 |
| Country | Wales |
| Divisions | 2 |
| Number of clubs | 31 (16 in Division 1, 15 in Division 2) |
| Level on pyramid | 3–4 |
| Promotion to | Cymru North |
| Relegation to | Gwynedd League Vale of Clwyd and Conwy Football League |
| Domestic cup(s) | Welsh Cup |
| Last champions | Division 1 – Holyhead Hotspur Division 2 – Y Felinheli (2019–20) |
| Most championships | Llangefni Town (5 titles) |
| Current: 2019–20 season | |
The Welsh Alliance Football League (formerly the Lock Stock Welsh Alliance Football League, for sponsorship reasons) was a football league formed in 1984, and discontinued in 2020 following the reorganisation of the Welsh football pyramid for the 2020-21 season.
Division 1 was part of the third level of the Welsh football league system in North Wales.