Lamy is a surname. Notable people with the surname include:
A–C Alexandra Lamy (born 1971), French actress Amédée-François Lamy (1858–1900), French military officer Benoît Lamy (1945–2008), Belgian motion picture writer and director Bernard Lamy (1640–1715), French theologian and mathematician Brigitte Lamy (born 1950), French curler Charles Lamy (1857–1940), French actor Charles Lamy (New York politician) (1849–?), American merchant and politician C. Josef Lamy ( 1930s–?), German pen manufacturer, founder of Lamy Claude-Auguste Lamy (1820–1878), French chemist
D–I Étienne Lamy (1845–1919), French political writer
François Lamy (politician) (born 1959), French politician François Lamy (theologian) (1636–1711), French Benedictine ascetical and apologetic writer Gérard Lamy (1919–2016), Québécois-Canadian politician Guillaume Lamy (1644–1683), French physician and Epicurean materialist Ingmari Lamy (born 1947), Swedish fashion model
J–O James Lamy (1928–1992) American bobsledder Jason Lamy-Chappuis (born 1986), Franco-American skier Jean Lamy, French slalom canoeist Jean-Baptiste Lamy (1814–1888), French Catholic archbishop Jean-Claude Lamy (1941–2025), French journalist, writer and publisher Jehan Lamy ( 1540s), author of Le langaige du Bresil Jenny Lamy (born 1949), Australian sprinter Jerome Lamy (1726–1781), Austrian Benedictine Biblical scholar, writer and educator Joseph Alfred Lamy (Lamy Père; 1850–1919), French archetier (maker of bows for musical string instruments)
P–Z Pascal Lamy (born 1947), French politician and World Trade Organization Director-General Pedro Lamy (born 1972), Portuguese automobile racer Peronet Lamy (died before 1453), Gothic painter and manuscript illuminator
Pierre-Henri Lamy (born 1987), French footballer Pierre Marie Édouard Lamy de la Chapelle (1804–1886), French botanist Steven Lamy, American international relations professor Thomas Joseph Lamy (1827–1927), Belgian Biblical scholar and Orientalist Vincent Lamy (born 1999), Canadian soccer player