The 1955–56 FA Cup was the 75th staging of the world's oldest football cup competition, the FA Cup. Manchester City won the competition, beating Birmingham City 3–1 in the final at Wembley, London. Matches were scheduled to be played at the stadium of the team named first on the date specified for each round, which was always a Saturday. If scores were level after 90 minutes had been played, a replay would take place at the stadium of the second-named team later the same week. If the replayed match was drawn further replays would be held at neutral venues until a winner was determined. If scores were level after 90 minutes had been played in a replay, a 30-minute period of extra time would be played.