Formulas
- Hyperbolic spiral
- Hyperboloid
- Hypercharge
- Hypercube graph
- Hyperkähler manifold
- Hypernucleus
- Joos–Weinberg equation
- Jordan's lemma
- Jordan curve theorem
- Jordan map
- Joule expansion
- Beta-binomial distribution
- List of Laplace transforms
- List of Philadelphia Phillies team records
- List of formulae involving π