| Official Name: | Ambenja |
| Mapsize: | 100px |
| Pushpin Map: | Madagascar |
| Pushpin Map Caption: | Location in Madagascar |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Boeny |
| Coordinates: | -15.2833°N 46.9667°W |
Ambenja is a coastal town in the Boeny Region of northwestern Madagascar. It is located near the Mozambique Channel and is approximately 70 kilometers north of Mahajanga.