| 1951–52 Welsh Cup | |
| Country: | Wales |
| Second: | Merthyr Tydfil |
| Prev Season: | 1950–51 |
| Next Season: | 1952–53 |
The 1951–52 FAW Welsh Cup is the 65th season of the annual knockout tournament for competitive football teams in Wales.
League name pointed after clubs name.
Ten winners from the Fourth round and six new clubs.
| width=50 | Tie no | width=250 | Home | width=50 | Score | width=250 | Away |
|---|---|---|---|---|---|---|---|
| 1 | Chester (FL D3N) | 3–1 | Bangor City (CCL) |
| width=50 | Tie no | width=250 | Home | width=50 | Score | width=250 | Away |
|---|---|---|---|---|---|---|---|
| 1 | Wrexham (FL D3N) | 0–0 | Chester (FL D3N) | ||||
| replay | Wrexham (FL D3N) | 2–0 | Chester (FL D3N) |
Cardiff City and Wrexham played at Shrewsbury, both matches between.
| width=50 | Tie no | width=250 | Home | width=50 | Score | width=250 | Away |
|---|---|---|---|---|---|---|---|
| 1 | Barry Town (SFL) | 1–1 | Rhyl (CCL) | ||||
| replay | Barry Town (SFL) | 0–1 | Rhyl (CCL) | ||||
| 2 | Wrexham (FL D3N) | 0–0 | Merthyr Tydfil (SFL) |
Final were held at Cardiff.
| width=50 | Tie no | width=250 | Home | width=50 | Score | width=250 | Away |
|---|---|---|---|---|---|---|---|
| 1 | Rhyl (CCL) | 4–3 | Merthyr Tydfil (SFL) |