Christiaens
Christiaens or Christiaans is a Dutch patronymic surname most common in East and West Flanders. People with this name include:
- Adèle Christiaens, Belgian fencer
- Chris Christiaens, American Democratic politician
- Elsje Christiaens, Danish-born murderer, executed in Amsterdam and depicted by Rembrandt
- Jeffrey Christiaens, Belgian-born Filipino footballer
- Jo Christiaens, Belgian football defender
- Josef Christiaens, Belgian engineer, racecar driver and aviator