| Santa Helena | |
| Settlement Type: | Municipality |
| Official Name: | The Municipality of Santa Helena |
| Nickname: | "Pérola do Turí" (Pearl of Turi) |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name: | Brazil |
| Subdivision Name1: | Northeast |
| Subdivision Name2: | Maranhão |
| Established Title: | Founded |
| Established Date: | September 30, 1935 |
| Leader Title: | Mayor |
| Leader Name: | Helena Maria Lobato Pavão (PTB) |
| Area Note: | [1] |
| Area Total Km2: | 2,308.403 |
| Population As Of: | 2020 [2] |
| Population Total: | 42,483 |
| Population Density Km2: | auto |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Coordinates: | -2.2308°N -45.3°W |
| Blank Name: | HDI (2000) |
| Blank Info: | 0.600 – medium[3] |
| Website: | www.santahelena.ma.gov.br |
Santa Helena is a municipality in the state of Maranhão in the Northeast region of Brazil.
The municipality contains a small part of the Baixada Maranhense Environmental Protection Area, a sustainable use conservation unit created in 1991 that has been a Ramsar Site since 2000.