| Season | 2003–04 |
|---|---|
| Champions | Airbus UK |
| Relegated | Amlwch Town |
| ← 2002–03 2004–05 → | |
The 2003–04 Cymru Alliance was the fourteenth season of the Cymru Alliance after its establishment in 1990. The league was won by Airbus UK.
League table
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Airbus UK (C, P) | 32 | 27 | 4 | 1 | 88 | 31 | +57 | 85 | Promotion to Welsh Premier League |
| 2 | Buckley Town | 32 | 20 | 6 | 6 | 74 | 33 | +41 | 66 | |
| 3 | Ruthin Town | 32 | 19 | 7 | 6 | 78 | 48 | +30 | 64 | |
| 4 | Glantraeth | 32 | 18 | 8 | 6 | 74 | 44 | +30 | 62 | |
| 5 | Llangefni Town | 32 | 15 | 7 | 10 | 71 | 54 | +17 | 52 | |
| 6 | Guilsfield | 32 | 15 | 7 | 10 | 68 | 56 | +12 | 52 | |
| 7 | Llandudno | 32 | 15 | 6 | 11 | 63 | 50 | +13 | 51 | |
| 8 | Halkyn United | 32 | 15 | 5 | 12 | 64 | 57 | +7 | 50 | |
| 9 | Llanfairpwll | 32 | 12 | 7 | 13 | 51 | 52 | −1 | 43 | |
| 10 | Flint Town United | 32 | 10 | 9 | 13 | 61 | 62 | −1 | 39 | |
| 11 | Holyhead Hotspur | 32 | 10 | 8 | 14 | 51 | 67 | −16 | 38 | |
| 12 | Lex XI | 32 | 9 | 8 | 15 | 77 | 85 | −8 | 35 | |
| 13 | Gresford Athletic | 32 | 10 | 4 | 18 | 48 | 64 | −16 | 34 | |
| 14 | Holywell Town | 32 | 8 | 8 | 16 | 38 | 61 | −23 | 32 | |
| 15 | Mold Alexandra | 32 | 6 | 6 | 20 | 43 | 84 | −41 | 24 | |
| 16 | Cemaes Bay | 32 | 5 | 7 | 20 | 37 | 70 | −33 | 22 | |
| 17 | Amlwch Town (R) | 32 | 2 | 5 | 25 | 34 | 102 | −68 | 11 | Relegation to Welsh Alliance |
Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
(C) Champions; (P) Promoted; (R) Relegated