| Official Name: | Porto Nacional |
| Settlement Type: | Municipality |
| Mapsize: | 250px |
| Coordinates: | -10.7078°N -48.4169°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Norte |
| Subdivision Type2: | State |
| Subdivision Name2: | Tocantins |
| Leader Title: | Mayor |
| Leader Name: | Paulo Alves Mourão (PT) |
| Area Total Km2: | 4449.917 |
| Population Total: | 53,316 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | 11.04 |
| Timezone: | BRT |
| Utc Offset: | -3 |
Porto Nacional is a Brazilian municipality in the state of Tocantins. The population was 53,316 (2020) in an area of 4450km2, including both rural and urban areas.
It is located approximately in the center of the state at a distance of 60 km. from the state capital of Palmas, which lies to the north on highway TO-050 Porto Nacional lies on the right bank of the important Tocantins River, which flows north to join the Araguaia River. Leaving from the capital of Goiás, Goiânia, it is located at a distance of 769 km, taking the BR-153 (Belém-Brasília) and then TO-255.
The city is served by Porto Nacional Airport.
The main economic activities are cattle raising and the growing of crops like soybeans, pineapple, rice, mamona, corn, and sorghum.
Planted area of main crops in 2006
Farm data for 2006