| Official Name: | Chapadinha |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -3.7419°N -43.36°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Northeast |
| Subdivision Type2: | State |
| Subdivision Name2: | Maranhão |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Type5: | Metrop. region |
| Leader Title: | Mayor |
| Area Total Km2: | 3,247 |
| Population Total: | 80,195 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Postal Code Type: | Postal code |
| Area Code Type: | Area code |
Chapadinha is a Brazilian municipality in the state of Maranhão. It is located 235 km south-east of the state capital São Luís. The population is 80,195 (2020) and the total area is 3,247 km2.
The municipality lies in the Munim River basin.The municipality contains the Chapada Limpa Extractive Reserve, created in 2007.
Chapadinha experiences a tropical savanna climate (Köppen: Aw) with hot temperatures and distinct wet and dry seasons. The city experiences a wet season from January to May. The dry season extends from July to November.