Kestenbaum is a German surname. Notable people with the surname include:
David Kestenbaum, American radio correspondentJonathan Kestenbaum, Baron Kestenbaum, Labour member of the House of LordsLawrence Kestenbaum (born 1955), attorney, politician, and the creator of the Political Graveyard websiteRichard Kestenbaum, partner in Triangle Capital LLCRyel Kestenbaum (also called Ryel K), one of the founders of the Pink Mammoth artist collectiveDave Kestenbaum, Director of the Certification for Sustainable Transportation