The 1966–67 FAW Welsh Cup is the 80th season of the annual knockout tournament for competitive football teams in Wales.
| Tournament details | |
|---|---|
| Country | Wales |
| Final positions | |
| Champions |  Cardiff City |
| Runner-up | Wrexham |
Key edit
League name pointed after clubs name.
Fifth round edit
Ten winners from the Fourth round and six new clubs.
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Borough United (WLN) | 2–5 | Chester (FL D4) |
Sixth round edit
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Pwllheli & District (WLN) | 2–3 | Chester (FL D4) |
Semifinal edit
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Chester (FL D4) | 0–0 | Wrexham (FL D4) |
| replay | Wrexham (FL D4) | 4–2 | Chester (FL D4) |
| 2 | Newport County (FL D4) | 1–2 | Cardiff City (FL D2) |
Final edit
| Tie no | Home | Score | Away |
|---|---|---|---|
| 1 | Wrexham (FL D4) | 2–2 | Cardiff City (FL D2) |
| Cardiff City (FL D2) | 2–1 | Wrexham (FL D4) |
