Christian Christiansen may refer to:
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Christian Christiansen (musician) (1884–1955), Danish musician
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Christian Christiansen (physicist)
Christian Christiansen (9 October 1843 in Lønborg, Denmark – 28 November 1917 Frederiksberg) was a Danish physicist.
Christiansen first taught at the local polytechnical school. In 1886, he was appointed to a chair for physics at the Univer ...
(1843–1917), Danish physicist
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Christian E. Christiansen (born 1972), Danish filmmaker
{{hndis, Christiansen, Christian