| São João do Polêsine | |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -29.6139°N -53.4458°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Type1: | State |
| Subdivision Name1: | Rio Grande do Sul |
| Subdivision Type2: | Mesoregion |
| Subdivision Type3: | Microregion |
| Leader Title: | Mayor |
| Established Title: | Founded |
| Total Type: | Total |
| Population As Of: | 2020 [1] |
| Population Total: | 2,543 |
| Population Density Km2: | auto |
| Timezone: | BRT |
| Utc Offset: | -3 |
São João do Polêsine is a municipality in the state of Rio Grande do Sul, Brazil.
In this city there are outcrops with fossils. Sauropodomorph dinosaur Buriolestes and dinosauromorph Ixalerpeton were found in the Carnian (Late Triassic) deposits. The type species Ixalerpeton polesinensis was named after São João do Polêsine in 2016.[2]