Otxarkoaga-Txurdinaga is the third district of the city of Bilbao, Basque Country (Spain). It is divided into the neighbourhoods of Otxarkoaga and Txurdinaga. It has an area of 389.94 hectares and a population of 29,690 inhabitants (2005), being one of the least densely populated districts of the city.
These two neighbourhoods were historically part of the old parish of Begoña. In these areas existed vineyards for the elaboration of the traditional Txakoli white wine, this has given the inhabitants the nickname of Matxorris, from Basque language Mahats=grape and orri=plant.
- "Plano Callejero". Bilbao City Council. Retrieved 2007-10-15.