1998–99 Welsh Alliance League
# 1998–99 Welsh Alliance League

The 1998–99 Welsh Alliance League was the 15th season of the Welsh Alliance League after its establishment in 1984. The league was won by Llangefni Town.

## League table

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| - | - | - | - | - | - | - | - | - | - | - |
| 1 | Llangefni Town (C, P) | 18 | 12 | 3 | 3 | 49 | 25 | +24 | 39 | Promotion to Cymru Alliance |
| 2 | Locomotive Llanberis | 18 | 12 | 3 | 3 | 43 | 31 | +12 | 39 | |
| 3 | Colwyn Bay YMCA | 18 | 11 | 5 | 2 | 45 | 22 | +23 | 38 | |
| 4 | Amlwch Town | 18 | 10 | 3 | 5 | 48 | 36 | +12 | 33 | |
| 5 | Llanfairpwll | 18 | 6 | 5 | 7 | 39 | 30 | +9 | 23 | |
| 6 | Rhyl Delta | 18 | 6 | 3 | 9 | 37 | 37 | 0 | 21 | |
| 7 | Halkyn United | 18 | 6 | 3 | 9 | 29 | 40 | −11 | 21 | |
| 8 | Rhyl Reserves | 18 | 5 | 5 | 8 | 28 | 44 | −16 | 20 | |
| 9 | Bangor City Reserves | 18 | 5 | 1 | 12 | 37 | 50 | −13 | 16 | |
| 10 | Llandyrnog United | 18 | 1 | 1 | 16 | 22 | 72 | −50 | 4 | |
