| Official Name: | Ambanja District |
| Settlement Type: | District |
| Mapsize: | 180px |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Diana |
| Seat Type: | Capital |
| Area Total Km2: | 5,999.72 |
| Population As Of: | 2013 |
| Population Total: | 190435 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank1: | Sakalava |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -13.6786°N 48.4522°W |
Ambanja is a district in northern Madagascar. It is a part of Diana Region and borders the districts of Ambilobe to the east, Bealanana to the south and Analalava to the south-west. The area is 5999.720NaN0 and the population was estimated at 190,435 in 2013.[1]
The district is the main producer of Cocoa beans (valley of the Sambirano River) in Madagascar.
The district is further divided into 18 communes: