Jørn Jamtfall (born 27 July 1966 in Trondheim) is a Norwegian football coach and a former goalkeeper. He spent most of his professional career, from 1994 to 2001, at Rosenborg BK, but was loaned out to Sogndal IL in the last half of the 2001 season. He made one appearance for the Norwegian national team, against South Korea in 1997.
He is often remembered for spectacular mistakes in several important matches, e.g. the Champions League match against Real Madrid in 2000.
He has currently a dual role as both a junior team coach for Rosenborg, and as goalkeeper coach for the Norwegian national team.
He is the father of Michael Kleppe Jamtfall, a talented winger.