Eibar (Basque:Eibar, Spanish:Éibar) is a city and municipality within the province of Gipuzkoa, in the Basque Country of Spain. It is the head town of Debabarrena, one of the comarcas of Gipuzkoa.

Eibar has 27,439 inhabitants (INE, 2013). Its chief industry is metal manufacturing, and has been known since the 16th century for the manufacture of armaments, particularly finely engraved small arms. It was also the home of Serveta scooters.