Lebrun, LeBrun, or Le Brun is a surname and a given name. Notable people with the name include:

• Albert Lebrun (1879–1950), French politician and President of France
• Alexis Lebrun (born 2003), French table tennis player
• Céline Lebrun (born 1976), French judoka
• Charles Le Brun (1619–1690), French painter
• Charles-François Lebrun (1739–1824), 1st duc de Plaisance, French statesman
• Christopher Le Brun (born 1951), British artist, primarily a painter
• Claude LeBrun (born 1956), American mathematician
• Élisabeth Vigée Le Brun (1755–1842), French painter
• Eugénie Le Brun (died 1908), French-born Egyptian feminist intellectual and salon host
• Félix Lebrun (born 2006), French table tennis player
• Francesca Lebrun (1756–1791), German singer and composer
• Fromund Le Brun (died 1283), cleric and judge in Ireland and Lord Chancellor of Ireland
• Garin lo Brun or le Brun (died 1156/1162), French troubadour
• Jean Lebrun (born 1950), French journalist and radio producer
• Jean-Baptiste-Pierre Lebrun (1748–1813), French painter, art collector and art dealer
• Julie Le Brun (1780–1819), French painter and frequent model for her mother, Élisabeth Vigée Le Brun
• Louis-Sébastien Lebrun (1764–1829), French opera composer and tenor
• Ludwig August Lebrun (1752–1790), German composer and oboist
• Maurice le Brun, 1st Baron Brun (before 1279–1354/1355), English baron
• Napoleon LeBrun (1821–1901), American architect
• Pierre-Antoine Lebrun (1785–1873), French poet
• Ponce Denis Écouchard Lebrun (1729–1807), French lyric poet
• Richard Lebrun, Canadian historian
• Rico Lebrun (1900–1964), Italian artist

• Lebrun Constantine (1874–1942) West Indian cricketer

• Lebrón, given name and surname