Etymology and OriginsZuñiga is a Basque toponymic surname, originating from the town of Zuñiga in Navarre, Spain. The Basque form of the town is Estuniga, which may derive from the Basque word istuin meaning "channel, strait" — likely a geographical reference to the local terrain. The surname spread through the Iberian Peninsula and beyond as families from the town migrated.Historical SignificanceIn Spanish history, the House of Zúñiga (often spelled Zúñiga in Castilian) was a prominent noble lineage dating back to the medieval Kingdom of Castile. Members held titles such as Duke of Béjar and Marquess of Gibraleón, and played key roles in the Spanish colonization of the Americas. For instance, Baltasar Pérez de Zúñiga served as a colonial administrator in the 16th century.Notable BearersNotable individuals with the surname include: