Christoff is both a given name and a surname. Notable people with the name include:
- Given name
- Christoff Bryan (born 1996), Jamaican high jumper
- Christoff De Bolle (born 1976), known by the mononym Christoff, Belgian Flemish schlager singer and radio presenter
- Christoff Swanepoel, South African rugby league player
- Christoff Van Heerden (born 1985), South African racing cyclist
- Middle name
- Surname