John 'Tune' Kristiansen (born 12 February 1955) is a Danish professional Association football manager, until recently was working as head coach of Boldklubben Frem. As an active footballer, Tune played in the forward position. He started his career with top-flight club Køge Boldklub, and participated in Køge's international games against FC Bayern Munich. He moved to BK Frem in 1980, and scored three goals in 26 games for the club. He then moved to Herfølge BK. He was deemed surplus at Herfølge in 1986, and played one season at lower-league club , before he ended his career with Køge following the 1988 season. In all, he scored 32 goals in 176 matches for Køge.