Buenaventura is one of the 67 municipalities of Chihuahua, in northern Mexico. The municipal seat lies at San Buenaventura. The municipality covers an area of .
As of 2010, the municipality had a total population of 22,378, up from 20,533 as of 2005.
The municipality had 237 localities, the largest of which (with 2010 populations in parentheses) were: San Buenaventura (6,957), Ejido Benito Juárez (5,778), Constitución (2,709), Flores Magón (2,510), classified as urban, and Rodrigo M. Quevedo (1,367), classified as rural.