Alvear is a town in Corrientes Province, Argentina, and serves as the capital of the General Alvear Department. It lies at the mouth of the Aguapey River, on the Uruguay River, which forms the border with Brazil. Across the river is the Brazilian city of Itaqui, with which Alvear is closely linked.
The town is reached by National Route 14 or by the General Urquiza railway. It sits roughly 800 kilometres north of Buenos Aires, 250 kilometres south of Posadas and 440 kilometres from the provincial capital, Corrientes. According to the 2001 census conducted by INDEC, Alvear had a population of 7,917 inhabitants.