The King Alfonso XIII's Cup 1927 was the 27th staging of the Copa del Rey, the Spanish football cup competition.

Teams

Champions and runners-up of each regional championship were able to participate in the tournament. 26 teams entered the competition, making a new record of participants.

Group stage

Group 1

Group 2

Tie-break league:

Group 3

Group 4

Group 5

Group 6

Group 7

Group 8

Knockout phase

Quarterfinals

First leg:

Semifinals

May 8, 1927

Final

Special Trophy

An additional trophy presented by the King, and therefore also labelled a 'Copa del Rey' was played for in May 1927 involving Motherwell and Swansea Town who were both on tour in Spain at the time and generated much local interest. The British clubs played off with Motherwell winning 4–3 to earn the right to face hosts Real Madrid. The Scots won 3–1 and claimed the special trophy.