| Coordinates: | -15.9119°N -46.0964°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | State |
| Subdivision Name1: | Minas Gerais |
| Subdivision Type2: | IBGE microregion |
| Subdivision Name2: | Unaí |
| Established Date: | 1962 |
| Leader Title: | Mayor |
| Leader Name: | Carlos Alberto Rech Filho (2005-2009) |
| Unit Pref: | Metric |
| Area Total Km2: | 5339 |
| Elevation M: | 509 |
| Population Footnotes: | [1] |
| Population As Of: | 2020 |
| Population Total: | 17862 |
| Population Density Km2: | auto |
| Postal Code Type: | Postcode (CEP) |
| Postal Code: | 38680-000 |
| Timezone: | BRT |
| Utc Offset: | -3 |
Arinos is a municipality in northern Minas Gerais state in Brazil. Arinos is located east of the Federal District on the Urucuia River, a major tributary of the São Francisco. The city is 333 km from Brasília.
The municipality belongs to the statistical microregion of Unaí Microregion, which has 9 municipalities. Neighboring municipalities are:
Arinos has poor highway connections leading east to the Sao Francisco river and to the state capital of Belo Horizonte, but a better road leading west to the national capital of Brasília. Few of the roads in the town are paved. There is a fully paved road (BR-479) leading west to Cabeceiras to join the important BR-020, 22 kilometers east of Formosa. The distance is approximately 165 kilometers. Another paved road leads west, then southwest to Garapuava, and continues southwest to the important regional center of Unaí.
The economy is based on cattle raising and agriculture, especially the cultivation of soybeans, sorghum, and corn.
Main agricultural crops in 2006)
Livestock raising in 2006
Farm data in 2006
Part of the municipality of Arinos is inside the Grande Sertão Veredas National Park, which lies to the north on an unpaved highway between Arinos and Formosa.