Tortuguitas is a city in Greater Buenos Aires, Argentina, located about 40 kilometres (25 mi) northwest of Buenos Aires. It lies within Malvinas Argentinas Partido, one of the counties that make up the metropolitan area surrounding the national capital.
According to the 2001 Census, the city had a population of 41,390 inhabitants, making it one of the larger localities in its partido. Its position within Greater Buenos Aires places it in the densely populated urban belt that extends outward from the city of Buenos Aires.