| Brenton-on-Sea | |
| Pushpin Map: | South Africa Western Cape#South Africa |
| Coordinates: | -34.0667°N 24°W |
| Subdivision Type: | Country |
| Subdivision Name: | South Africa |
| Subdivision Type1: | Province |
| Subdivision Name1: | Western Cape |
| Subdivision Type2: | District |
| Subdivision Name2: | Garden Route |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Knysna |
| Subdivision Type4: | Main Place |
| Established Title: | Established |
| Leader Title: | Councillor |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.76 |
| Population Total: | 294 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Racial makeup (2011) |
| Demographics1 Title1: | Black African |
| Demographics1 Info1: | 5.1% |
| Demographics1 Title2: | Coloured |
| Demographics1 Info2: | 1.7% |
| Demographics1 Title3: | Indian/Asian |
| Demographics1 Title4: | White |
| Demographics1 Info4: | 91.2% |
| Demographics1 Title5: | Other |
| Demographics1 Info5: | 2.0% |
| Demographics Type2: | First languages (2011) |
| Demographics2 Title1: | Afrikaans |
| Demographics2 Info1: | 50.2% |
| Demographics2 Title2: | English |
| Demographics2 Info2: | 44.7% |
| Demographics2 Title5: | Other |
| Demographics2 Info5: | 5.1% |
| Timezone1: | SAST |
| Utc Offset1: | +2 |
| Postal Code Type: | Postal code (street) |
| Postal2 Code Type: | PO box |
| Area Code Type: | Area code |
Brenton-on-Sea is a settlement and seaside resort town 15km west of Knysna in Garden Route District Municipality in the Western Cape province of South Africa.
Named after Sir Jahleel Brenton, who declared Knysna a harbour in 1818, the area is home to the endangered Brenton blue butterfly.
It is part of the Garden Route and a popular spot for seaside vacations and holidays.
The endangered Brenton Blue butterfly is responsible for large sects of land in the Brenton area remaining undeveloped. The last breeding colonies of the tiny endemic butterfly are found here and in 2003, the land was proclaimed a Special Nature Reserve to try to save the species. [2]