Leiter is a surname. Notable people with the surname include:
Al Leiter, Major League Baseball pitcher
Brian Leiter, American philosopher and legal scholar
Felix Leiter, fictional character in the James Bond series
Ken Leiter, American ice hockey player
Levi Leiter, American businessman
Mark Leiter, Major League Baseball pitcher and brother of Al
Mark Leiter (US Businessman), Chief Strategy Officer at Nielsen
Michael Leiter, former director, National Counterterrorism Center
Saul Leiter, photographer and artist