1950–51 Welsh Cup

The 1950–51 FAW Welsh Cup is the 64th season of the annual knockout tournament for competitive football teams in Wales.

Key
League name pointed after clubs name.
 * CCL - Cheshire County League
 * FL D2 - Football League Second Division
 * FL D3N - Football League Third Division North
 * FL D3S - Football League Third Division South
 * SFL - Southern Football League

Fifth round
Eight winners from the Fourth round and six new clubs.

Sixth round
Seven winners from the Fifth round plus one new club.

Semifinal
Cardiff City and Wrexham played at Shrewsbury, both matches between Newport County and Merthyr Tydfil were held at Cardiff.

Final
Final and replay were held at Swansea.