Acassuso is a locality in the San Isidro "partido" of Buenos Aires Province. It is about 16 kilometres north of the city of Buenos Aires, between Olivos and San Isidro. It borders on the River Plate where an approximately 10 hectare municipal nature reserve "Refugio Natural Educativo de la Ribera Norte" exists since 1994. It is served by two commuter train services, the Tren de la Costa tourist line and the Mitre line.

Acassuso
Acassuso Location in Greater Buenos Aires
Coordinates: 34°28′S 58°31′W / 34.467°S 58.517°W / -34.467; -58.517
Country	Argentina
Province	Buenos Aires
Partido	San Isidro
Elevation	18 m (59 ft)
Population  (2001 census [INDEC])
• Total	12,842
CPA Base	B 1640
Area code	+54 11