Unquillo is a city in the province of Córdoba, Argentina. It is situated in the central region of the country, about 28 kilometres north-northwest of the centre of the provincial capital, Córdoba City, and roughly 14 kilometres east of Cosquín.
According to the 2010 census conducted by INDEC, the national statistics institute of Argentina, Unquillo had a population of 18,483 inhabitants at that time.