Rosario Municipality, Chihuahua

Rosario is one of the 67 municipalities of Chihuahua, in northern Mexico. The municipal seat lies at Valle del Rosario. The municipality covers an area of 1785.6 km².

As of 2010, the municipality had a total population of 2,235, down from 3,130 as of 2005.

The municipality had 62 localities, none of which had a population over 1,000.