1955–56 Welsh Cup

The 1955–56 FAW Welsh Cup is the 69th season of the annual knockout tournament for competitive football teams in Wales.

Key
League name pointed after clubs name.
 * B&DL - Birmingham & District League
 * CCL - Cheshire County League
 * FL D1 - Football League First Division
 * 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
Nine winners from the Fourth round and seven new clubs.

Semifinal
Swansea Town and Newport County played at Cardiff, Oswestry Town and Cardiff City played at Wrexham.

Final
Final were held at Cardiff.