| Colônia Leopoldina | |
| Settlement Type: | Municipality of Alagoas, Brazil |
| Flag Alt: | Flag of Colônia Leopoldina |
| Shield Alt: | Coat of arms of Colônia Leopoldina |
| Map Alt: | Location of Colônia Leopoldina in Alagoas |
| Pushpin Map: | Brazil#South America |
| Pushpin Relief: | yes |
| Coordinates: | -8.9139°N -35.725°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name1: | Northeast |
| Established Title: | Founded |
| Established Date: | 12 June 1901[1] |
| Leader Title1: | Mayor |
| Leader Name1: | Manuilson Andrade Santos (MDB) (2021-2024)[2] |
| Leader Title2: | Vice Mayor |
| Leader Name2: | Luciana Medeiros de Luna Freitas (PP) (2021-2024) |
| Area Total Km2: | 207.935 |
| Elevation M: | 140 |
| Population As Of: | 2022 |
| Population Total: | 15816[3] |
| Population Density Km2: | 76.06 |
| Population Demonym: | Leopoldinense (Brazilian Portuguese) |
| Timezone: | Brasília Time |
| Utc Offset: | -03:00 |
| Postal Code Type: | Postal code |
| Postal Code: | 57975-000[4] |
| Blank Name: | HDI (2010) |
| Blank Info: | 0.517 – low |
| Website: | colonialeopoldina.al.gov.br |
Colônia Leopoldina is a municipality located in the Brazilian state of Alagoas. Its population is 21,818 (2020)[5] and its area is 287 km².[6]