Christian Syse (born 30 September 1962) is a Norwegian civil servant and diplomat.

[1] Syse served at the Office of the Prime Minister from 1998 to 2003 and then as head of the international department and secretary to the Standing Committee on Foreign Affairs of the Norwegian parliament.

From 2008 to 2011 he was director general (ekspedisjonssjef) for European affairs and trade policy in the Ministry of Foreign Affairs and from 2011 deputy secretary general (assisterende utenriksråd) of the Foreign service.

[1] In December 2016 he was appointed ambassador and head of the Norwegian embassy in Stockholm,[2] effective from March 2017.

Syse was married to Siv Nordrum, a journalist, communications director and politician.