| Koh Preab | |
| Native Name: | កោះព្រាប |
| Map: | Cambodia |
| Location: | Cambodia - South East Asia |
| Coordinates: | 10.6667°N 133°W |
| Area Km2: | 0.0046 |
| Length Km: | 0.1 |
| Width Min Km: | 0.063 |
| Width Max Km: | 0.074 |
| Elevation M: | 3 |
| Country: | Cambodia |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions: | Sihanoukville |
| Country Admin Divisions Title 1: | District |
| Country Admin Divisions 1: | Sihanoukville |
| Ethnic Groups: | Khmer |
Koh Preab, km|កោះព្រាប, "Dove Island", named "Île du Départ" during the French colonial period is an island of Cambodia, situated in the Bay of Kompong Saom Sihanoukville Province near its south-eastern coast. This small island has been integrated into the local harbor's breakwater just north of the Sihanoukville Autonomous Port. The estimated terrain elevation above sea level is 3 meters. A unit of the Royal Cambodian Navy is based on the island.[1]