Mashi is a Local Government Area in Katsina State, Nigeria, sharing a border with the Republic of Niger.

Its headquarters is in the town of Mashi in the southwest of the area at12°59′00″N 7°57′00″E / 12.98333°N 7.95000°E / 12.98333; 7.95000.

It has an area of 905 km2 and a population of 173,134 at the 2006 census.

The postal code of the area is 823.

This Katsina State, Nigeria location article is a stub.