Kiehl is a surname. Notable people with the surname include:
August Kiehl (1854–1938), Dutch actor, director and playwright Cinta Laura Kiehl (born 1993), Indonesian actress, singer, and model Heinz Kiehl (1943–2016), German wrestler Jeffrey Kiehl (born 1952), American climatologist Jesse Kiehl (born 1976), American politician Kent Kiehl, American neuroscientist Marina Kiehl (born 1965), German skier Reinhardt Kiehl (1935–2026), German mathematician
See also Keel (surname) Kiehl Frazier (born 1992), American footballer Kiehl's, brand of cosmetics Kiel (disambiguation)