Encyclopedias, Almanacs, Transcripts, and Maps
- Dibrugarh
- Dickinson College
- Dickinson, Goldsworthy Lowes
- Dickinson, Jonathan
- Didius Julianus
- Didon, Henri
- Didot, François
- Didyma
- Didymus Chalcenterus
- Diego, Gerardo
- Diepenbeeck, Abraham van
- Dies, Martin, Jr.
- Dieskau, Ludwig August, Baron
- diethyltoluamide
- Dietikon
- Dietrich von Bern
- Diez, Friedrich Christian
- differential calculus
- differential geometry
- digallic acid