Gurruchaga is a Spanish form of Basque surname Basque: Gurrutxaga. Notable people with the surname include:
- Emilio Gurruchaga (born 1934), Spanish sailor
- José Ramón Gurruchaga Ezama (1931–2017), Peruvian Roman Catholic bishop
- Juan José Gurruchaga (born 1977), Chilean actor
- Itziar Gurrutxaga (born 1977), Spanish footballer
- Zuhaitz Gurrutxaga
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