Koen de Kort is a Dutch former professional cyclist, who competed between 2002 and 2021 for the Rabobank GS3, Astana–Würth, Astana, Team Giant–Alpecin and Trek–Segafredo teams. Since his retirement from racing, De Kort has acted as the team support manager for his last professional team Lidl–Trek.

ONCE cycling team, also known as Liberty Seguros, Liberty Seguros–Würth and in succession in its final year, Astana–Würth and Astana was a Spanish cycling team. It competed in the UCI ProTour circuit.