Leander is a given name. The most famous bearer of the name is mythological, from the story of Hero and Leander.
People named Leander include:
Leander of Seville (c. 534–600 or 601), Catholic saint and bishop who converted the son of the Visigothic king from Arianism
Leander Babcock (1811–64), United States Representative from New York
Leander Clark (1823–1910), American businessman, politician and Union Army officer during the American Civil War
Leander Cox (1812–65), United States Representative from Kentucky
Leander Czerny (1859–1944), Czech entomologist
Leander Ditscheiner (1839–1905), Austrian physicist and mathematician
Leander F. Frisby (1825–89), American politician, lawyer and Wisconsin Attorney General
Leander Haußmann (born 1959), German theatre and film director
Leander Starr Jameson (1853–1917), British colonial statesman best known for the Jameson Raid on the Transvaal Republic in Africa
Leander Jordan (born 1977), American National Football League offensive tackle
Leander Kahney (born 1965), American journalist and author
Leander J. McCormick 1819–1900), American inventor, manufacturer, philanthropist and businessman
L. Hamilton McCormick (1859–1934), American author, inventor, art collector and sculptor, son of the above
Leander H. McNelly (1844–1877), Confederate officer and Texas Ranger captain
Leander Paes (born 1973), Indian tennis player
Leander Perez (1891–1969), American Democratic Party political boss in Louisiana
Leander Richardson (1856–1918), American journalist, playwright and theatrical writer
Leander J. Talbott (1849–1924), American realtor and politician, former mayor of Kansas City, Missouri
Lee Talbott (Leander James Talbott, Jr.) (1887–1954), American track and field athlete
Leander Tomarkin (1895–1967), Swiss imposter who claimed to have invented a miracle medicine
Leander Watts, author of young adult literature
Fictional characters include:
Leander Sydnor, in the television series The Wire
Leander Wapshot, in the novel The Wapshot Chronicle and its sequel by John Cheever