A
- Alan Leitner (born 1947), Jewish American artist
- Aloysius Leitner, the United States Marine Corps
- Anton G. Leitner (born 1961), German writer and publisher de:Anton G. Leitner
- Birgit Leitner (born 1981), Austrian female footballer de:Birgit Leitner
- George Michael "Dummy" Leitner (1872–1960), a Major League Baseball pitcher
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