Christiaens or Christiaans is a Dutch patronymic surname ("Christiaan's") most common in East and West Flanders.Christiaens at familienaam.beChristiaens at the Database of Surnames in The Netherlands. People with this name include:
Adèle Christiaens (1909–?), Belgian fencer Chris Christiaens (born 1940), American (Montana) Democratic politician Elsje Christiaens (c.1646–1664), Danish-born murderer, executed in Amsterdam and depicted by Rembrandt Jeffrey Christiaens (born 1991), Belgian-born Filipino footballer Jo Christiaens (born 1988), Belgian football defender Josef Christiaens (1882–1919), Belgian engineer, racecar driver and aviator
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