Kleiner () is a

German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

Jew Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, religion, and community are highly inte ...

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surname In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give ...

, meaning "smaller": *

Alfred Kleiner Alfred Kleiner (24 April 1849 – 3 July 1916) was a Swiss physicist and Professor of Experimental Physics at the University of Zurich. He was Albert Einstein's doctoral advisor or ''Doktorvater.'' Initially Einstein's advisor was Heinrich F ...

, Swiss physicist * Marianne Kleiner, Swiss politician * Bruce Kleiner, American mathematician * Krista Arrieta Kleiner, Filipino-American TV actress/singer and host * Dick Kleiner, Hollywood columnist * Eugene Kleiner, Silicon Valley venture capitalist * Helga Kleiner, German politician * 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

Fictional characters

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

Other meanings

* Kleiner Feldberg, mountain in Germany *

Kleiner Perkins Caufield & Byers Kleiner Perkins, formerly Kleiner Perkins Caufield & Byers (KPCB), is an American venture capital firm which specializes in investing in incubation, early stage and growth companies. Since its founding in 1972, the firm has backed entrepreneur ...

, venture capital firm * Kleiner Semmering Pass, mountain pass in Austria * Kleiner Münsterländer, hunting-pointing-retrieving dog breed {{surname German-language surnames Surnames of Jewish origin Yiddish-language surnames