| Serras de Sudeste | |
| Type: | Micro-region |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | State |
| Subdivision Name1: | Rio Grande do Sul |
| Subdivision Type2: | Mesoregion |
| Subdivision Name2: | Sudeste Rio-Grandense |
| Seat Type: | Seat |
| Area Total Km2: | 16,513 |
| Population Density Km2: | auto |
| Parts Type: | Municipalities |
| Parts Style: | para |
| P1: | 8 |
The Serras de Sudeste Microregion (Portuguese: Microrregião das Serras de Sudeste) is a microregion in the southern part of the state of Rio Grande do Sul, Brazil. It is named after a hill range (a plateau) named Serras de Sudeste, which means Southeastern Mountain Ranges. The area is 16,512.614 km².
The microregion consists of the following municipalities:[1]