Kjell Grandhagen (7 October 1954 – 3 May 2019) was a Norwegian military officer.
He served as head of the Norwegian Military Academy from 1996 to 1999.
From 2006 he served at the Ministry of Defence, as assistant military secretary with the rank of lieutenant general.
In 2009 he was appointed head of the Norwegian Intelligence Service.
This biographical article related to the Norwegian military is a stub.