John Steen Olsen (born 4 January 1943) is a Danish former footballer. He played for Hvidovre IF, Boston Beacons, VV DOS, FC Utrecht, Feyenoord and IFK Malmö during his active career.
After his career, he worked as a scout for Ajax in Scandinavia, bringing players such as Zlatan IbrahimoviÃÂ, Viktor Fischer, Christian Eriksen, Michael Laudrup and Kasper Dolberg to Amsterdam.