- Hájek
- Hällstrom-Kametani theorem
- Hällstr⍥m
- Hänsch, Theodor Wolfgang
- Hébertists
- Hédervári crater
- Hédi Kaddour
- Hénon
- Hénon attractor
- Hénon Heiles model
- Hénon-Heiles model
- Hénon map
- Hénon mapping
- Hérigone
- Hölder
- Hölder summation method
- Hörmander
- Hörmander,Lars Valter
- Hückel energy diagram
- Hückel method
- Hückel methods
- Hückel molecular orbital theory
- Hückel molecular orbital theory (HMOT)
- Hückel molecular orbital（HMO） method
- Hückel's rule