| Osório | |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -29.8942°N -50.2652°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: | 46,414 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Area Code Type: | Area/distance code |
| Blank Name Sec1: | IBGE code |
| Timezone: | BRT |
| Utc Offset: | -3 |
Osório is a coastal municipality and a town in the state of Rio Grande do Sul. Its population is about 46,000 inhabitants.
Osório is located 90 km east of the state capital, Porto Alegre. The municipality was created in 1857 by fission from Santo Antonio da Patrulha and named Conceição do Arroio. It was renamed in 1934 by decree to honor Manuel Luís Osório, 19th century military commander and politician who was born there.
The Osório wind farm, the largest wind power park in Latin America (300MW) was built in 2006 in the outskirts of the town.