Lamb,
Horace Lavrentiev,
Mikhail Lebesgue,
Henri Léon Legendre,
Adrien-Marie Lemaître,
Georges Edouard Levi-Civita,
Tullio Lie,
Marius Sophus Lightill,
Micheal James Lindemann,
Carl Louis Ferdinand Liouville,
Joseph Lipschitz,
Rudolf Otto Sigismund Lobachevsky,
Nikolai Ivanovich Lorenz,
Ludwig Valentine