The 1874–75 FA Cup was the fourth season of England's oldest football tournament, the Football Association Challenge Cup or "FA Cup". 29 teams entered, one more than the previous season, although four of the 29 never played a match. The final was contested by Royal Engineers – playing in their third final in the four seasons of the FA Cup – and Old Etonians – playing in their first final. On their way to the final, Royal Engineers knocked out Cambridge University in the Second Round and holders Oxford University in the Semi-finals, while Old Etonians only managed to score more than one goal in one match: their second replay against Swifts, which they won 3–0. The biggest win of the competition was recorded by two-time FA Cup winners Wanderers, who beat Farningham 16–0 in the First Round.