| Cayo South | |
|---|---|
| Constituency for the Belize House of Representatives | |
 | |
| District | Cayo |
| Electorate | 6,905 (2012) |
| Major settlements | Valley of Peace, Armenia |
| Current constituency | |
| Created | 1961 |
| Party | People's United Party |
| Area Representative | Julius Espat |
Cayo South is an electoral constituency in the Cayo District represented in the House of Representatives of the National Assembly of Belize since 2012 by Julius Espat of the People's United Party.