Denise Kielholtz (born 30 March 1989) is a Dutch female Muay Thai kickboxer and mixed martial artist, based in Amsterdam, Netherlands. She has competed professionally since 2004 and is the current Bellator Kickboxing Women's Flyweight Champion. As of July 26, 2022, she is #7 in the Bellator Women's pound-for-pound Rankings and #3 in the Bellator Women's Flyweight Rankings.