Tendler is a predominantly Yiddish derived Ashkenazi Jewish surname originating in-part to Bessarabia (now Moldova) in the region previously known as the Pale of Settlement. Until the 19th century, in the Bavarian-Austrian region, Tendler was a professional name for small and haberdashery traders as well as itinerant peddlers or traveling traders. Notable individuals with the surname include:
Annamarie Tendler, American multimedia artist known for her work in photography and textiles Keren Tendler (died 2006), Israeli first female helicopter flight mechanic Lew Tendler (1898–1970), American boxer Michael Tendler (born 1947), Russian-Swedish physicist Moshe David Tendler, rabbi and biology professor, expert in Jewish medical ethics Saul Tendler, British pharmacy academic Silvio Tendler (1950–2025), Brazilian filmmaker Susan Tendler, American rabbi