Holth is a surname. Notable people with the surname include:
Åsta Holth (1904–1999), Norwegian novelist, poet and short story writer Camilla Holth (born 1978), Norwegian curler Halfdan Holth (1880–1950), Norwegian veterinarian Marie Spångberg Holth (1865–1942), Norwegian physician Sverre Holth (1902–1993), Norwegian missionary in China Thorleif Holth (1931–2014), Norwegian politician Even Holth (2000-), Norwegian Musician