Encyclopedias, Almanacs, Transcripts, and Maps
- Bienne
- Bienville, Jean Baptiste le Moyne, sieur de
- Bifrost
- Big Black Mountain
- Big Cypress National Preserve
- Big Hole National Battlefield
- Big Island
- Big Rapids
- Big South Fork National River and Recreation Area
- Big Stone Lake
- Big Thicket National Preserve
- big tree
- big-bang theory
- Bighorn Mountains
- Bignon, Louis Pierre Édouard
- bignonia
- Bigod, Hugh, 1st earl of Norfolk
- Bigordi, Domenico
- Bigot, François
- Bigtha