Lemoine or Le Moine is a French surname meaning "Monk". Notable people with the surname include:
Adolphe Lemoine, known as Lemoine-Montigny (1812–1880), French comic-actor
Anna Le Moine (born 1973), Swedish curler
Antoine Marcel Lemoine (1763–1817) musician, music publisher, father to Henry
Benjamin-Henri Le Moine (1811–1875), Canadian politician and banker
C.W. Lemoine, US author
Claude Lemoine (born 1932), French chess master and journalist
Cyril Lemoine (born 1983), French cyclist
Émile Lemoine (1840–1912), French geometrician
Henri Lemoine (cyclist) (1909–1981), French cyclist
Henri Lemoine (fraudster) (fl. 1902–1908), French fraudster
Henry Lemoine (1786–1854), Piano teacher, music publisher, composer
Jacques-Antoine-Marie Lemoine (1751–1824), also Lemoyne, French painter
Jake Lemoine (born 1993), American baseball player
James MacPherson Le Moine (1825–1912), Canadian writer, lawyer and historian
Jean Lemoine (1250–1313), French canon lawyer, cardinal, bishop and papal legate
Jean-Luc Lemoine (born 1970), French comedian and TV presenter
Jean-René Lemoine (born 1959), Haitian comedian and film and theatre director
Jim LeMoine (born 1945), American football player
Jordy Lemoine (born 1988), French singer
Louis Lemoine (1764–1842), French general of the French Revolutionary Wars
Marie-Victoire Lemoine (1754–1820), French painter
Nick Lemoine (born 1957), British academic
Pablo Lemoine (born 1975), Uruguayan rugby union player
Patricia Lemoine (born 1961), French politician
Pierre Le Moine (born 1927), French activist and architect
Pierre-Antoine Lemoine (1605–1665), French painter
Pierre Camille Le Moine (1723–1800), French archivist
Rebecka Le Moine (born 1990), Swedish politician
René Lemoine (1905-1995), French Olympic fencer
Roger Le Moine (1933–2004), Canadian professor of literature, and literary critic Victor Lemoine (1823–1911), French horticulturist Virginie Lemoine, French humourist, comedian and actor Yvan Lemoine (born 1981), chef and author
See also
Lemoine point, the intersection of the symmedians of a triangle
Cardinal Lemoine (Paris Métro), a station on line 10 du métro de Paris
Le Moine, a mountain of the Pennine Alps, in Switzerland
Lemoyne (disambiguation) Lemoine River, tributary of Rivière Pot au Beurre, Montérégie, Quebec, Canada