Kleiner (Hebrew: קליינר) is a German or Jewish surname, meaning "smaller":

• Alfred Kleiner, Swiss physicist
• Bruce Kleiner, American mathematician
• Krista Arrieta Kleiner, Filipino-American TV actress/singer and host
• Dick Kleiner, Hollywood columnist
• Eugene Kleiner, Silicon Valley venture capitalist
• Israel Kleiner (biochemist) (1885-1966), biochemist
• Israel Kleiner (mathematician), Canadian mathematician, professor at McGill University
• John J. Kleiner, US Congressman from Indiana
• Michael Kleiner, Israeli politician
• Morris Kleiner, American professor of public affairs
• Sergio Kleiner, Argentine soap opera star
• Yosef Kleiner, rabbi, psychologist, actor and intellectual

• Isaac Kleiner, from the video games Half-Life and Half-Life 2.

• Kleiner Feldberg, mountain in Germany
• Kleiner Perkins Caufield & Byers, venture capital firm
• Kleiner Semmering Pass, mountain pass in Austria
• Kleiner Münsterländer, hunting-pointing-retrieving dog breed

This page lists people with the surname Kleiner.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.