| Official Name: | Sundy |
| Settlement Type: | Settlement |
| Pushpin Map: | Principe |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location on Príncipe Island |
| Subdivision Type: | Country |
| Subdivision Name: | São Tomé and Príncipe |
| Subdivision Type1: | Autonomous Region |
| Subdivision Name1: | Príncipe |
| Population As Of: | 2012 |
| Population Total: | 416 |
| Timezone1: | WAT |
| Utc Offset1: | +1 |
| Coordinates: | 1.6694°N 7.3842°W |
Sundy is a settlement in the northwestern part of Príncipe Island in São Tomé and Príncipe. Its population is 416 (2012 census).[1] Sundy lies 5 km northwest of the island capital of Santo António. In 1822 the first cocoa plantation of the whole archipelago was established in Sundy. Several buildings of this plantation have been preserved.[2]