| Salvador Alvarado Municipality | |
| Settlement Type: | Municipality |
| Native Name: | Municipio de Salvador Alvarado |
| Pushpin Label Position: | above |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Sinaloa |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Guamúchil |
| Subdivision Type3: | No. of Sindicaturas |
| Subdivision Name3: | 3 |
| Leader Title: | Municipal president |
| Leader Name: | Pier Angely Camacho Montoya |
| Established Title: | Foundation |
| Established Date: | 1962 |
| Area Total Km2: | 1197.5 |
| Population As Of: | 2010 |
| Population Total: | 79,085[1] |
| Timezone: | Mountain Standard Time |
| Utc Offset: | -7 |
| Website: | Salvador Alvarado Government page |
Salvador Alvarado Municipality (pronounced as /es/) is a municipality in the Mexican state of Sinaloa. It stands at 25.1358°N -107.8625°W.
The municipality reported 79,085 inhabitants in the 2010 census and has an areal extent of 1,197.5 km² (462.36 sq mi). Its municipal seat is the city of Guamúchil. The largest other community in the municipality is the town of Benito Juárez (population 5,128).