Atakunmosa West is a Local Government Area in Osun State, Nigeria.

Its headquarters are in the town of Osu (or Oshu) in the north of the area at7°35′00″N 4°37′00″E / 7.58333°N 4.61667°E / 7.58333; 4.61667.

It has an area of 577 km2 and a population of 68,643 at the 2006 census.

The postal code of the area is 233.

This Osun State, Nigeria location article is a stub.