Thinner may refer to: Lacquer thinner, a diluent or solvent used in lacquerwork. Paint thinner, a diluent or solvent used in painting and decorating. Thinner (novel), a 1984 horror novel by Stephen King, written as Richard Bachman Thinner (film), a 1996 horror film based on the novel by Stephen King Thinner (netlabel), a German netlabel releasing electronic music