| Football Association of Wales Challenge Cup | |
| Year: | 1886–87 |
| Country: | Wales |
| Winners: | Chirk AAA |
| Second: | Davenham |
| Prev Season: | 1885–86 |
| Next Season: | 1887–88 |
The 1886–87 FAW Welsh Cup was the tenth edition of the annual knockout tournament for competitive football teams in Wales.