Encyclopedias, Almanacs, Transcripts, and Maps
- guereza
- Guérin, Jules
- Guérin, Maurice de
- Guernsey cattle
- Guerra Junqueiro, Abílio
- Guerrazzi, Francesco Domenico
- Guerrière
- Guess, George
- Guest, Edwin
- Guiana Highlands
- Guibert of Ravenna
- guidance and counseling
- Guidi, Tommaso
- Guilford
- Guillemin, Roger Charles Louis
- Guillén, Jorge
- Guilmant, Félix Alexandre
- Guimerà, Ángel
- Guinea worm
- Guinea, Gulf of