Lea-Artibai is an eskualdea/comarca of the province of Biscay (Bizkaia), in the Basque Country, Spain.

It limits with the comarcas of Busturialdea at west and Durangaldea at south, while the province of Gipuzkoa is at the east.

Lea-Artibai is the only comarca of Biscay that does not have a single kilometer of highway or railway.

The economy of the municipalities of Lea-Artibai are based on the primary sector, while some industries, like one of fish preservation exist too.

This article about a location in the Basque Country, Spain, is a stub.