| Official Name: | Porto Grande |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | 0.7128°N -51.4128°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | North |
| Subdivision Type2: | State |
| Subdivision Name2: | Amapá |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Type5: | Metrop. region |
| Leader Party: | PDT |
| Leader Title: | Mayor |
| Leader Name: | Jose Maria Bessa de Oliveira |
| Area Total Km2: | 4425 |
| Population Total: | 22,452 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -03:00 |
| Postal Code Type: | Postal code |
| Postal Code: | 68980-000 |
| Area Code Type: | Area code |
Porto Grande (Portuguese: Grand Harbor, pronounced as /pt/) is a municipality located in the southeast of the state of Amapá in Brazil. Its population is 22,452[1] and its area is 4,425 km2.[2]
Porto Grande became an independent municipality in 1993.[3]
The area around Porto Grande was first explored by gold miners, however nowadays it has become one of the biggest food producers in Amapá. It is a poor region where many homes do not have sewage system, and a quarter of the population does not have access to clean drinking water, however Porto Grande has one of the lowest illiteracy rates of Brazil.[4]
The Annual Pineapple Festival in September is a popular tourist attraction. Other attractions are the spa near the Araguari River. As of 2021, a regional hospital was being constructed in Porto Grande.[5]
It has a tropical rainforest climate with a short dry season.
The municipality contains 7.72% of the Amapá State Forest, a sustainable use conservation unit established in 2006.
Porto Grande is a major fruit producer in particular pineapples and oranges. Other economic activities are livestock like cattle, buffalo and pig, palm oil and pine plantations.[6]
Porto Grande is connected to the BR-156,[6] and the BR-210 highways.[7]