Wachs as a surname may refer to:
- Caitlin (Elizabeth) Wachs (born 1989, Eugene, Oregon), American actress
- Daliah Wachs, an American radio personality
- Daniel Alfred Wachs (born 1976), American musician
- Friedhelm Wachs (es) (born 1963, Berlin), German periodist and editor
- Hans Heinrich (Wilhelm Ernst August) Wachs (1822, Breitenbach am Herzberg – 1895, Hanerau-Hademarschen), German physician, landowner and politician
- Joel Wachs (born 1939, Scranton, Pennsylvania), American politician, president of the Andy Warhol Foundation for the Visual Arts
- Judith Wachs (c. 1938, New York City – 2008), Jewish American singer and songwriter
- Larry Wachs, American radio host
- Murray Wachs, pseudonym: Bingo Gazingo (1924–2010), an elderly poet and postal worker from New York
- (Étienne Victor) Paul Wachs (1851, Paris – 1915), Saint-Mandé, French organist, pianist
- Ruby Wachs, now Ruby Wax (born 1953, Evanston), American comedian of Jewish Austrian descent
- Sabine Wachs (de) (born 1960, Wermsdorf), German female porcelain designer