Símon Bolivar Square in Ziortza-Bolibar
|Autonomous community||Basque Country|
|• Total||206 km2 (80 sq mi)|
|• Density||130/km2 (330/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
Lea-Artibai is a comarca of the province of Biscay, in the Basque Country, Spain. Lea-Artibai is the heir of the historical merindad of Markina, which was one of the merindades of Biscay. Currently, Lea-Artibai is one of the seven comarcas that compose the province. Its capital city is Markina-Xemein.
Lea-Artibai is located at the northeast extreme of the province. It limits with the comarcas of Busturialdea at west and Durangaldea at south, while the province of Gipuzkoa is at the east. The Bay of Biscay is at north. It occupies the drainage basin of the rivers Lea and Artibai.
Lea-Artibai is the only comarca of Biscay that does not have a single kilometer of highway or railway. Its communications are deficient and depend on roads, like the BI-633 that connects Ondarroa with Durango or the BI-2405 which connects Ondarroa with Lekeitio.