Encyclopedias, Almanacs, Transcripts, and Maps
- Nitrogen Family
- Nixon, Queenie (ca. 1918-1989)
- Noah's Ark Society for Physical Mediumship
- Nöel-Antoine Pluche
- Nolan Bushnell
- Nolan, Finbarr (1952-)
- Non-Point Source
- Non–Euclidean Geometry
- Non–Point Source
- Noonan Syndrome
- Noonan syndrome
- Norbert Rillieux
- Normal Accidents
- Norman E. Shumway
- Norman Steenrod
- Norrie Disease
- North America's First Permanent European Colony
- North American UFO Federation
- North Door
- Northern European Diet