Encyclopedias, Almanacs, Transcripts, and Maps
- Baron Friedrich Heinrich Alexander von Humboldt
- Baron Georges Léopold Cuvier
- Baron Gros
- Baron Heinrich Friedrich Karl vom und zum Stein
- Baron Kelvin of Largs
- Baron Samuel von Pufendorf
- Baron Sydenham
- Barras de Saint-Laurent, Jacques-Melchior, Comte de
- Barré, Isaac
- Barren Hill, Pennsylvania
- Barrès, Maurice (1862–1923)
- barrier treaties
- Barrios, Agustín Pìo
- Barrow, Errol
- Barrow, Nita
- Barry, Charles
- Barry, Marion
- Barshchina
- Barsov, Alexander Alexandrovich
- Barth, Karl (1886–1968)