| Settlement Type: | Microregion |
| Official Name: | Microregion of Assis |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Type3: | Mesoregion |
| Subdivision Name: |  Brazil |
| Subdivision Name1: | Southeast |
| Subdivision Name3: | Assis |
| Area Total Km2: | 7,141.738 |
| Population As Of: | 2014/IBGE |
| Population Note: | Estimative |
| Population Total: | 278.220 |
| Population Density Km2: | auto |
| Timezone: | UTC-3 |
| Utc Offset: | -3 |
| Timezone Dst: | UTC-2 |
| Utc Offset Dst: | -2 |
| Area Code: | +55 18 |
The Microregion of Assis (Portuguese: Microrregião de Assis) is located on the west of São Paulo state, Brazil, and is made up of 17 municipalities and it belongs to the Mesoregion of Assis.
The population of the Microregion is 278.220 inhabitants, in an area of 7.141,738 km²[1]
The microregion consists of the following municipalities,[2] listed below with their 2014 Census populations (IBGE/2014):[3]