Benito Juárez is a municipality in the state of Guerrero, Mexico. The municipal seat is the town of San Jerónimo de Juárez .

The municipality stands at 17°00' , on the Pacific coast between Acapulco and Zihuatanejo, covering 284.9 km². It is drained by the Río Atoyac . In the year 2000 census, it reported a population of 15,448.

It was named in honour of 19th century president and patriot Benito Juárez.