Zaratamo (Spanish: Zarátamo) is a town and municipality located in the province of Biscay, in the autonomous community of Basque Country, northern Spain. Zaratamo has an area 10.2 km² and an elevation of 173m. As of 2019 its population is 1,614 with a density of 158.8 people per km². 50.1% of the population is female while 49.9% is male.

43°12′46″N 2°52′20″W / 43.21278°N 2.87222°W / 43.21278; -2.87222