Thaulow is a surname shared by several notable people:
Carl Thaulow (1875–1942), Norwegian Olympic sailor
Frits Thaulow (1847–1906), Norwegian impressionist painter
Harald Thaulow (1815–1881), Norwegian pharmacist
Heinrich Arnold Thaulow (1808–1894), Norwegian physician
Johan Fredrik Thaulow (1840–1912), Norwegian physician
Moritz Christian Julius Thaulow (1812–1850), Norwegian chemist
Sven Thaulow (1905–1967), Norwegian Olympic swimmer
