| Melgaço | |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | State |
| Subdivision Name1: | Pará |
| Subdivision Type2: | Mesoregion |
| Subdivision Name2: | Marajó[1] |
| Subdivision Type3: | Microregion |
| Subdivision Name3: | Portel |
| Leader Title: | Mayor |
| Leader Name: | Jose Maria Rodrigues Viegas |
| Leader Party: | PSDB |
| Established Title: | Founded |
| Area Total Km2: | 6773.975 |
| Elevation M: | 12 |
| Population As Of: | 2020 [2] |
| Population Total: | 27,890 |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Coordinates: | -1.8039°N -50.7119°W |
| Blank Name Sec1: | HDI |
| Blank Info Sec1: | 0.588[3] |
| Blank1 Name Sec1: | GDP |
| Blank1 Info Sec1: | R$ 37,559,000[4] |
| Blank2 Name Sec1: | GDP per capita |
| Blank2 Info Sec1: | R$1.493,00 |
Melgaço is a Brazilian municipality in the state of Pará. It stands at an altitude of 12 meters. Its population was estimated in 2020 at 27,890 inhabitants, according to the IBGE.
It is located 290 km, in a straight line, from the capital of the state. It borders Portel, Breves, Bagre, Gurupá and Porto de Moz.
The hymn and seal of the municipality were composed by Francisco de Oliveira e Souza.
The Estação Científica Ferreira Pena (Ferreira Pena Science Station) is located in the rural area of Melgaço, on a river named Curuá, a tributary of the Caxiuanã.