Ituren is a town and municipality in the province and autonomous community of Navarre, in northern Spain. It is located in a westernmost outlying area of the Pyrenees, about 56.5 km north of Pamplona, the regional capital.
The town lies on the flood plain of the River Ezkurra, a tributary of the River Bidasoa. It sits in the shadow of the Mendaur mountain, whose summit is characterised by the tiny white-washed chapel of La Trinidad.