1977-78 Copa del Rey

The 1977-78 Copa del Rey was the sixth edition of Spain's national cup competition. It was won by CH Casco Viejo Bilbao, who defeated CHH Txuri Urdin in the final to claim their first title.

First round

 * Portugalete 11 - CH Vitoria-Gasteiz 5
 * CHH Txuri Urdin 23 - Real Sociedad HH 0

Semifinals

 * CH Casco Viejo Bilbao 13 - Portugalete 2
 * CHH Txuri Urdin 6 - FC Barcelona 3

Final

 * CH Casco Viejo Bilbao 9 - CHH Txuri Urdin 8