Kaulbach is a surname:
- Anton Kaulbach (1864-1930), German painter
- Charles Edwin Kaulbach (1834 - 1907), a Canadian merchant, ship owner and political figure
- Friedrich August von Kaulbach (1850–1920), German painter
- Friedrich Kaulbach (1822–1903), German painter
- Friedrich Kaulbach (1912–1992), German philosopher
- Hermann von Kaulbach (de) (1846–1909), German painter
- Wilhelm von Kaulbach (1804–1874), German painter