Mutriku (Spanish: Motrico) is a coastal town located in the province of Gipuzkoa in the Autonomous Community of Basque Country in northern Spain.

It is perched on rocky cliffs by the sea, and low tide reveals many bathing places and fishing spots.

Apart from the urban centre where the 85% of the population lives, the village contains 9 minor neighbourhoods as follows: Astigarribia, Artzain Erreka, Galdona, Ibiri, Laranga, Mijoa, Mizkia, Olabarrieta and Olatz.

The terrain is very rugged, with steep slopes and narrow valleys extending down to the coastline, cliffs, and tidal region of Guipuzcoa.

Agriculture in the rural districts is for subsistence and local consumption; surplus crops are sold in regional markets.

The Jentiletxea II and Iruroin Langatxo caves reveal prehistoric occupation in periods dating back to the Upper Paleolithic.

Important palaces and tower houses belonging to aristocratic families and the commercial and military classes were constructed.

However, in the late 20th century decline of the fishing sector gave rise to increased attention to another alternative, tourism.

To solve port entry and stability problems with the dock and attract tourists interested in ocean access to the Bay of Biscay, a new seawall was designed and located outside the old harbor.

With the 21st century came another important works project, the building of a direct route to the harbor to ameliorate heavy traffic in the medieval old city center.