Lagranges

Lagranges is a French surname. It is the plural form of Lagrange, a toponymic name derived from places named La Grange in France, with La Grange literally meaning "the barn" or "the granary." The plural form may refer to a family or to multiple individuals bearing the surname.

In English-language contexts, individuals are usually referred to by the singular form Lagrange, while Lagranges would denote a group of people sharing the surname or the family as a unit.

Notable bearers and legacy: The name is associated with scholars and scientists. The best-known bearer of the related name is Joseph-Louis Lagrange (1736–1813), the Italian-born French mathematician whose work contributed to analysis, number theory, and celestial mechanics. Concepts such as Lagrangian mechanics, Lagrange multipliers, and Lagrange points derive from his surname. While these terms use the singular form Lagrange, they reflect the same family-name origin.

Geographic distribution: The surname remains present in France and among diaspora communities worldwide, particularly in regions with historical French influence.