- hyperhyperboloid
- hyperhypersimple set
- hypericin
- hypericosahedron
- hyperidentity
- hyper-IgE syndrome
- hyperimmune
- hyperimmune free degree
- hyperimmune-free degree
- hyperimmune set
- hyperinaccessible cardinal number
- hypering
- hyperintegral
- hyperinvariant
- hyperinvariant subspace
- Hyperion
- hyperjump
- hyperkahler manifold
- hyperkahler metric
- hyperkalemia
- hyperkeratosis
- hyper-Kähler geometry
- hyper-Kähler manifold
- hyperkähler manifold
- hyperkähler metric