Jan Ditlev Hansen (born 26 March 1946 in Trondheim, Norway) is a Norwegian Jazz journalist and program host at the NRK.
Hansen has been closely involved in northern Norwegian jazz for 40 years.
First in the Harstad as secretary and director of Nordnorsk Jazzforum in the early 1970s, then in Vadsø, in which he was master of ceremonies during the first Varangerfestivalen in 1982.
From 1997 he has been living in Tromsø, where he produces his weekly Rundt midnatt (Around midnight) for the NRK P2.
Hansen has written journalistic books, articles, and local historical writings, including the jazz.