Formulas
- Hochschild homology
- Hodge bundle
- Hodge index theorem
- Hodge theory
- Hoffman graph
- Hoffman–Singleton graph
- Hofstadter sequence
- Hollow matrix
- Holomorph (mathematics)
- Holomorphic Lefschetz fixed-point formula
- Holomorphic functional calculus
- Holomorphic tangent bundle
- Holonomic function
- Hom functor
- Homeomorphism