leas - Levy
- least favorable distribution
- least squares method
- least-cost partition
- Lebesgue decomposition
- Lebesgue measure
- Lebesgue theorem
- Lebowitz' inequality
- Lee-Yang theorem
- left Markov process
- left Palm distribution
- Legendre polynomial
- Legendre transform
- Lehniann-Sheffe theorem
- lemma
- Lenard-Jones potential