The 1993–94 WRU Challenge Cup, known for sponsorship reasons as the SWALEC Cup, was the 24th WRU Challenge Cup, the annual national rugby union cup competition of Wales. The competition was won by Cardiff who beat Llanelli 15-8 in the final.
| Home team | Score | Away team |
|---|---|---|
| Abercynon | 12-19 | Neath |
| Bonymaen | 6-0 | Tondu |
| Bridgend | 29-6 | Felinfoel |
| Cardiff RFC | 27-3 | Oakdale |
| Dunvant | 39-10 | Pyle |
| Kidwelly | 6-49 | Llanelli |
| Llandovery | 18-3 | Mold |
| Maesteg | 9-5 | Glamorgan Wanderers |
| Maesteg Celtic | 8-3 | Talywain |
| Narberth | 16-6 | Nantymoel |
| Newbridge | 32-3 | Llanharan |
| Pontypridd | 29-0 | Aberavon |
| South Wales Police | 10-3 | Caerphilly |
| Swansea | 70-6 | Seven Sisters |
| Tenby United | 18-13 | Abercrave |
| Ystradgynlais | 10-9 | Newport RFC |
| Home team | Score | Away team | |
|---|---|---|---|
| Cardiff | 15-6 | Bridgend | |
| Dunvant | 8-16 | Newbridge | |
| Llanelli | 57-5 | Landovery | |
| Maesteg | 11-10 | Bonymaen | |
| Maesteg Celtic | 14-37 | South Wales Police | |
| Pontypridd | 13-3 | Swansea | |
| Tenby United | 23-14 | Narberth | |
| Ystradgynlais | 3-26 | Neath |
| Home team | Score | Away team | |
|---|---|---|---|
| Cardiff | 20-13 | South Wales Police | |
| Maesteg | 35-7 | Tenby United | |
| Neath | 3-7 | Llanelli | |
| Pontypridd | 32-10 | Newbridge |
| Team 1 | Score | Team 2 | Venue | |
|---|---|---|---|---|
| Cardiff | 8-6 | Pontypridd | Rodney Parade | |
| Llanelli | 23-7 | Maesteg | Neath |