1906 Copa del Rey
The Copa del Rey  1906 was the 4th staging of the Copa del Rey, the Spanish football cup competition.

The competition started on April 9, 1906, and concluded on April 11, 1906, with the last group stage match, in which Madrid FC lifted the trophy for the second time ever with 2 victories over Recreativo de Huelva and Athletic de Bilbao. The three teams entered the tournament played playing all against all in three games. The X Sporting Club, Catalonia championship did not want to travel to Madrid to play the tournament for economical and internal reasons.

Almost all of the Recreativo de Huelva team players were English.

Group stage