| Official Name: | Dois Riachos |
| Nickname: | Land of the cattle (pt|Terra do Gado) |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Name1: | Northeast |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name2: | Alagoas |
| Leader Title: | Mayor |
| Leader Name: | Ramon Camilo |
| Established Title: | Incorporated (municipality) |
| Established Date: | July 8, 1960 |
| Area Total Km2: | 139.850 |
| Area Footnotes: | [1] |
| Population As Of: | 2020 [2] |
| Population Total: | 11067 |
| Population Demonym: | Riachense[3] |
| Population Density Km2: | 77.4 |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Coordinates: | -9.3928°N -37.1008°W |
| Postal Code Type: | CEP postal code |
| Postal Code: | 57560-000 |
| Area Code Type: | Area code |
| Area Code: | 82 |
| Blank Name: | HDI (2010) [4] |
| Blank Info: | 0,532 |
| Website: | doisriachos.al.gov.br |
Dois Riachos is a municipality located in the West of the Brazilian state of Alagoas. Its population is 11,067 (2020) and its area is 140 km².[5]
Dois Riachos is the birthplace of Marta, among the most notable woman football players in the world.