| Rio de Contas | |
| Settlement Type: | Municipality |
| Official Name: | Municipality of Rio de Contas |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | Region |
| Subdivision Name: |  Brazil |
| Subdivision Name2: | Northeast |
| Established Title: | Founded |
| Established Date: | 27 November 1723 |
| Leader Title: | Mayor |
| Leader Name: | Cristiano Cardoso de Azevedo |
| Leader Party: | PSB |
| Area Total Km2: | 1,115.252 |
| Population As Of: | 2021 |
| Population Total: | 12,878 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Population Demonym: | rio-contense |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Blank Name: | HDI (2010) |
| Blank Info: | 0.605 – medium[2] |
Rio de Contas is a municipality in the Bahia state, in the eastern part of Brazil. Its estimated population was 12,932.[3]
Rio de Contas has its origins in the 18th century. In 1718 the town of Santo Antônio de Mato Grosso was founded. It was later elevated to the status of municipality in 1773, with the designation of Vila Nova de Nossa Senhora do Livramento das Minas do Rio de Contas. Its named was shortened in 1840 to Minas do Rio de Contas, and in 1931 to Rio de Contas.
For many arriving from the south, it is the gateway to Chapada Diamantina. It stands at 1200m (3,900feet) above sea level.
Rio de Contas is home to numerous colonial-period historic structures, many designated as Brazilian national monuments. The historic center of Rio de Contas (Conjunto Arquitetônico da Cidade de Rio de Contas) was designated a national monument by the National Institute of Historic and Artistic Heritage (IPHAN).