Kahan is a Hebrew-associated surname and given name related to priestly lineage, akin to Cohen.
Kahan is a variant of Cohen (also spelled Kohen, Cahan, or Kagan in different traditions), one of the most historically significant surnames and given names in the Jewish world. The Hebrew root כֹּהֵן (kohen) means "priest," and it specifically designated the hereditary priestly class descended from Aaron, brother of Moses. The Kohanim held the highest religious functions in the ancient Temple in Jerusalem — they performed sacrifices, maintained sacred vessels, and pronounced the Priestly Blessing (Birkat Kohanim) over the community.
After the Temple's destruction in 70 CE, the priestly role became largely ceremonial, but the name survived and spread across the Diaspora as a surname carrying immense historical and religious prestige. As a given name, Kahan brings the weight of that priestly lineage into the first name position, a choice that has become more common as Jewish families seek names that honor heritage while sounding contemporary. It joins a tradition of using traditional surnames as given names — a practice widespread in American naming culture.
The Kahan spelling in particular has a crisp, modern quality that distinguishes it from the more common Cohen while retaining the unmistakable cultural resonance. Notably, the Kagan variant became globally famous through Supreme Court Justice Elena Kagan, demonstrating the name family's reach beyond religious contexts. In secular Jewish communities and in Israel, where modern Hebrew has reclaimed ancient vocabulary, kohen remains a live word meaning priest, giving the name a linguistic directness rare in other traditions. To name a child Kahan is to invoke centuries of sacred service, scholarly devotion, and communal continuity — a name that carries the entire arc of Jewish civilization within three syllables.