Burundi (pronounced [buˈɾundi]), officially the Republic of Burundi, is a small country in the Great Lakes region of Africa. It is bordered by Rwanda on the north, Tanzania on the south and east, and the Democratic Republic of the Congo on the west....

The Beck Depression Inventory

Black Dragon Inn, a role-playing channel on the IRC network SorceryNet.

BDI is a three letter acronym that can stand for:

The Baltic Dry Index

BDI (philosophy), a model used in rational software agents

Brand Development Index a measure used in the allocation of media, and promotion for a specific product or service.