Lemaire (or LeMaire or Le Maire) is a surname. Notable people with the surname include:
Adrien Lemaire (1852–1902), French botanistAlfred Jean Baptiste Lemaire, French military musicianAxelle Lemaire, (born 1974), French politicianBernard Lemaire (born 1936), Canadian businessmanBernard Lemaire (prefect) (1946-2009), French civil servant (prefect)Bruno Le Maire (born 1969), French Minister of Food, Agriculture and FishingChristophe Lemaire (full name Christophe Patrice Lemaire, born 1979), French-born jockeyCharles LeMaire (1897–1985), American costume designerCharles Lemaire (explorer), Belgian explorer of the Belgian CongoCharles Antoine Lemaire (1800–1871), French botanist and botanical authorDenise Lemaire (born 1956), former Canadian handball playerEdward LeMaire (died 1961), American figure skaterGéry Lemaire (1928-2013), Belgian orchestra conductor and orthodox priestGhislain Lemaire (born 1972), French judokaIsaac Le Maire (1558–1624), merchant for the Vereenigde Oostindische CompagnieJacob Le Maire (1585–1616), Dutch explorer and discoverer of Cape HornJacques Gerard Lemaire (born 1945), former ice hockey centre and former coach of the New Jersey Devils in the National Hockey LeagueJean Lemaire de Belges (c. 1473 – c. 1525), Walloon poet and historian who lived primarily in FranceJean-Marie Lemaire (born 1936), Belgian Olympic rowerMadeleine Lemaire (1845–1928), French painterMaximiliaan le Maire (1606–1654), Dutch officer for the Vereenigde Oostindische CompagniePaulin Lemaire (born 1882 - died ?), French gymnastPhilema Lemaire (1856–1932), French politician and a Governor General of Pondicherry in Second French Colonial EmpirePhilippe Joseph Henri Lemaire (1798–1880), French sculptorTabitha Lemaire (born 1977), French-Canadian singerAimée Bologne-Lemaire (1904–1998), Belgian feminist, member of the Resistance, and Walloon activistLouis François Auguste Cauchois-Lemaire (1789–1861), French journalist