Matthias Kreutzer (born 23 December 1982) is a German football coach.
On 20 October 2022, Kreutzer took over Schalke 04 as head coach on an interim basis after Frank Kramer was sacked by the club. His tenure was over after a week, when a new coach, Thomas Reis, was hired. After Reis was fired on 27 September 2023, he became Schalke's interim head coach again and was replaced two weeks later.