| Constantina | |
| Settlement Type: | Municipality |
| Motto: | "Celeiro da Hospitalidade" |
| Population Demonym: | Constantinense |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Name1: | South |
| Subdivision Name2: | Rio Grande do Sul |
| Subdivision Name3: | Noroeste Rio-Grandense |
| Subdivision Name4: | Frederico Westphalen |
| Established Title: | Founded |
| Established Date: | 14 April 1959 |
| Leader Title: | Mayor |
| Leader Name: | Fidelvino Menegazzo (PDT, 2021 - 2024) |
| Area Total Km2: | 203.614 |
| Population Total: | 9903 |
| Population As Of: | 2021 |
| Population Density Km2: | auto |
| Timezone: | BRT |
| Utc Offset: | -3 |
Constantina, Rio Grande do Sul is a municipality in the state of Rio Grande do Sul, Brazil. Founded April 14, 1959. The municipality's motto is "Celeiro da Hospitalidade", meaning "Barn Hospitality".[1]
It is a municipality that is part of the microregion of Frederico Westphalen. It is located at latitude 27º44'05 "South and longitude 52º59'32" West, with an altitude of 501 meters.[2]
It has an area of 278.54 km² and its estimated population in 2020 was 9,907 inhabitants.[3]