| Official Name: | Etrotroka Sud |
| Pushpin Map: | Madagascar |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Madagascar |
| Pushpin Mapsize: | 180 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Atsimo-Atsinanana |
| Subdivision Type2: | District |
| Subdivision Name2: | Farafangana |
| Population As Of: | 2001 |
| Population Total: | 17000 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -22.8833°N 83°W |
| Elevation Footnotes: | [1] |
| Elevation M: | 22 |
Etrotroka Sud is a town and commune in Madagascar. It belongs to the district of Farafangana, which is a part of Atsimo-Atsinanana Region. The population of the commune was estimated to be approximately 17,000 in 2001 commune census.
Primary and junior level secondary education are available in town. The majority 90% of the population of the commune are farmers, while an additional 2% receives their livelihood from raising livestock. The most important crops are rice and coffee, while other important agricultural products are cassava and pepper. Services provide employment for 8% of the population.[2]