Encyclopedias, Almanacs, Transcripts, and Maps
- Giovanni Girolamo Saccheri
- Giovanni Maria Lancisi
- Giovanni Ventura Rosetti
- Giovanni Vigo
- Giraffes and Okapi
- Giraffes and Okapi
- Girard Desargues
- Girard Desargues and Projective Geometry
- Girard, Jean-Baptiste (1680-1733)
- Girard, René
- Girdle Wearers: Loricifera
- Girdled and Plated Lizards: Cordylidae
- Girolamo Cardano
- Girolamo Cardano
- Girolamo Fabrici
- Giulio Carlo Fagnano dei Toschi
- Giulio Cesare Aranzio
- Giulio Natta
- Giuseppe Peano
- Giuseppe Piazzi