| Competition: | Welsh Alliance League |
| Season: | 1997–98 |
| Winners: | Holyhead Hotspur |
| Prevseason: | 1996–97 |
| Nextseason: | 1998–99 |
The 1997–98 Welsh Alliance League was the fourteenth season of the Welsh Alliance League after its establishment in 1984. The league was won by Holyhead Hotspur.