is an American soccer coach and former player who is the director of operations and special projects for Major League Soccer side Real Salt Lake and the former head coach of the United States under-23 team. From 2021 to 2023, he also served as an assistant coach for MLS club Inter Miami. He coached Orlando City SC in Major League Soccer and was previously an assistant coach under Jürgen Klinsmann for the United States men's national soccer team. Prior to that he was the head coach of New York City FC and Real Salt Lake.

Kreis spent the majority of his playing career in Major League Soccer in the United States, initially with the Dallas Burn, and later with Real Salt Lake. In total he made over 300 professional appearances, was Major League Soccer MVP in 1999, and is currently tied for the fifth highest scorer in MLS regular season history, with 108 goals. He also earned fourteen international caps for the United States national team. At one point in his playing career, he was the all-time leading scorer in MLS history.