Lagrange (disambiguation)
Joseph-Louis Lagrange was an Italian mathematician, physicist and astronomer.
Lagrange or La Grange may also refer to:

Lagrange (surname), list of people with this name

Mathematics and physics
Lagrange multiplier, a mathematical technique
Lagrange's theorem (group theory), or Lagrange's lemma, an important result in Group theory
Lagrange's theorem (number theory), about prime numbers
Lagrangian point, in physics and astronomy
Lagrange polynomial
Lagrangian mechanics

Places
Australia
Lagrange Bay, Western Australia
La Grange (originally La Grange Mission), a dual name for Bidyadanga Community, Western Australia

France
La Grange, Doubs
Lagrange, Hautes-Pyrénées
Lagrange, Landes
Lagrange, Territoire de Belfort

United States
LaGrange, Arkansas
La Grange, California
La Grange (Glasgow, Delaware)
LaGrange, Georgia
LaGrange Commercial Historic District, in the National Register of Historic Places listings in Troup County, Georgia
La Grange, Illinois, village in Cook County
La Grange Village Historic District, in the National Register of Historic Places listings in Cook County, Illinois
LaGrange, Indiana
LaGrange, Tippecanoe County, Indiana
La Grange, Kentucky
Lagrange, Maine
La Grange (La Plata, Maryland)
LaGrange (Cambridge, Maryland)
La Grange, Missouri
LaGrange, New York
La Grange, North Carolina
La Grange Historic District (North Carolina)
LaGrange (Harris Crossroads, North Carolina)
LaGrange, Ohio
La Grange, Tennessee
La Grange, Texas, a county seat
Lagrange, Virginia
La Grange, Monroe County, Wisconsin, a town
La Grange, Walworth County, Wisconsin, a town
La Grange (community), Wisconsin, an unincorporated community
La Grange, Wyoming, a town
LaGrange County, Indiana
Lagrange Township, Bond County, Illinois
LaGrange Township, Michigan
LaGrange Township, Lorain County, Ohio
La Grange, U.S. Virgin Islands

Moon
Lagrange (crater)

Other uses
Lagrange: The Flower of Rin-ne, a 2011 mecha anime
La Grange expedition, Australia
"La Grange" (song), released on the 1973 ZZ Top album Tres Hombres
Château Lagrange, a wine from Bordeaux, France

See also
Fond La Grange, a village in Haiti
Château de la Grange-Bléneau, a castle in France
Lagrangian (disambiguation)
Grange (disambiguation)
La Grange Historic District (disambiguation)