Nijman is a Dutch surname. Among variant forms are Neijman, Neyman, Nieman(s), and Nyman. It originated as a nickname for either an unknown or nameless person, related to modern Dutch niemand ("nobody"), or for a newcomer to a place (modern Dutch nieuw man, cognate to English Newman and German Neumann. People with this surname include:
Brigitte Nijman (born 1970), Duch musical actress, singer and voice actor
Hans Nijman (1959–2014), Dutch mixed martial artist and professional wrestler.