Dennis van der Geest (Dutch pronunciation: [ˈdɛnəs fɑn dər ˈɣeːst]; born 27 June 1975) is a Dutch judoka, who won the bronze medal in the men's heavyweight (+ 100 kg) division at the 2004 Summer Olympics. He was born in Haarlem, North Holland. In 2005, he became the world judo champion in the men's open division by defeating Russian Tamerlan Tmenov with ippon in the final. In 2000 and 2002, he became European Champion in the over 100 kg event. He won three bronze medals and one silver medal at previous world championships. In 2019 he played a role in the film Brugklas: De tijd van m'n leven.