| Muaná | |
| Settlement Type: | Municipality |
| Mapsize: | 250px |
| Pushpin Map: | Brazil |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name: |  Brazil |
| Subdivision Name1: | North |
| Area Total Km2: | 3765.524 |
| Elevation M: | 22 |
| Population As Of: | 2020 [1] |
| Population Total: | 40,906 |
| Population Density Km2: | 7.4 |
| Coordinates: | -1.5278°N -49.2169°W |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Postal Code Type: | Postal Code |
| Postal Code: | 68825-000 |
Muaná is a Brazilian municipality located in the state of Pará. Its population as of 2020 is estimated to be 40,906 people. The area of the municipality is 3,765.524 km². The city belongs to the mesoregion Marajó and to the microregion of Arari.
The municipality is contained in the Marajó Archipelago Environmental Protection Area, a sustainable use conservation unit established in 1989 to protect the environment of the delta region.