| Lagoa do Mato | |
| Settlement Type: | Municipality |
| Official Name: | The Municipality of Lagoa do Mato |
| Nickname: | "A Princesinha do Médio Sertão" (The Little Princess of the Middle Countryside) |
| Motto: | Lagoa do Mato seguindo em frente (Lagoa do Mato Carrying On) |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name: | Brazil |
| Subdivision Name1: | Northeast |
| Subdivision Name2: | Maranhão |
| Established Title: | Founded |
| Established Date: | November 10, 1994 |
| Leader Title: | Mayor |
| Leader Name: | Aluízio Coelho Duarte (DEM) |
| Area Note: | [1] |
| Area Total Km2: | 1,288.863 |
| Population As Of: | 2020 [2] |
| Population Total: | 11,265 |
| Population Density Km2: | auto |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Coordinates: | -6.0469°N -43.5258°W |
| Elevation M: | 200 |
| Blank Name: | HDI (2000) |
| Blank Info: | 0.550 – medium[3] |
| Website: | www.lagoadomato.ma.gov.br |
Lagoa do Mato is a municipality in the state of Maranhão in the Northeast region of Brazil.