The 1957–58 FAW Welsh Cup is the 71st season of the annual knockout tournament for competitive football teams in Wales.
| Tournament details | |
|---|---|
| Country | Wales |
| Final positions | |
| Champions |  Wrexham |
| Runner-up |  Chester |
Key
editLeague name pointed after clubs name.
Fifth round
editTen winners from the Fourth round and six new clubs.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Oswestry Town (B&DL) | 1–3 | Chester (FL D3N) |
Sixth round
edit| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Chester (FL D3N) | 2–0 | Swansea Town (FL D2) |
Semifinal
editChester and Hereford United played at Wrexham, replay - at Swansea, Caernarfon Town and Wrexham played at Bangor.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Chester (FL D3N) | 1–1 | Hereford United (SFL) |
| replay | Chester (FL D3N) | 2–0 | Hereford United (SFL) |
| 2 | Caernarfon Town (WLN) | 2–4 | Wrexham (FL D3N) |
Final
editFinal were held at Chester, replay - at Wrexham.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Chester (FL D3N) | 1–1 | Wrexham (FL D3N) |
| replay | Wrexham (FL D3N) | 2–1 | Chester (FL D3N) |
