Leitner is a German surname. Notable people with the surname include:
Alan Leitner (born 1947), American artist
Aloysius Leitner, United States Marine Corps
Anton G. Leitner (born 1961), German writer and publisher
Dummy Leitner (1872–1960), American baseball player
Edward Frederick Leitner (1812–1838), German physician and botanist
Erika Leitner, Italian luger
Ferdinand Leitner (1912–1996), German conductor
Franz Leitner (politician) (1918–2005), Austrian politician
Franz Leitner (motorcyclist) (born 1968), Austrian motorcycle speedway rider
Friedrich Leitner (1874–1945), German economist
Gottlieb Wilhelm Leitner (1840–1899), Anglo-Hungarian orientalist
Hias Leitner (born 1935), Austrian alpine skier
Jan Leitner (born 1953), Czech athlete
Karl Gottfried Ritter von Leitner (1800–1890), Austrian writer
Karl Leitner (born 1937), Austrian sprint canoer
Ludwig Leitner (1940–2013), West German alpine skier
Miroslav Leitner (born 1966), Slovak ski mountaineer
Moritz Leitner (born 1992), German footballer
Patric Leitner (born 1977), German luger
Sebastian Leitner (1919–1989), Austrian-German science popularizer, journalist and author, inventor of the Leitner system using flashcards
Tammy Leitner (born 1972), U.S. journalist and reality television contestant
Thea Leitner (born 1921), Austrian writer
Ted Leitner, American sportscaster
Vladimir Leitner (born 1974), Slovak footballer
Wolfgang Leitner (born 1953), Austrian businessman