The 1955–56 FAW Welsh Cup is the 69th season of the annual knockout tournament for competitive football teams in Wales.
| Tournament details | |
|---|---|
| Country | Wales |
| Final positions | |
| Champions |  Cardiff City |
| Runner-up | Swansea Town |
Key
editLeague name pointed after clubs name.
Fifth round
editNine winners from the Fourth round and seven new clubs.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Rhyl (CCL) | 0–2 | Chester (FL D3N) |
Sixth round
edit| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Swansea Town (FL D2) | 1–0 | Chester (FL D3N) |
Semifinal
editSwansea Town and Newport County played at Cardiff, Oswestry Town and Cardiff City played at Wrexham.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Oswestry Town (B&DL) | 0–7 | Cardiff City (FL D1) |
| 2 | Swansea Town (FL D2) | 5–2 | Newport County (FL D3S) |
Final
editFinal were held at Cardiff.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Cardiff City (FL D1) | 3–2 | Swansea Town (FL D2) |
