Nicholas "Nick" Delpopolo (born February 8, 1989) is an American judoka.
He competed in the men's 73 kg event at the 2012 Summer Olympics; after defeating Cheung Chi Yip in the second round and Dirk Van Tichelt in the third, he lost to Wang Ki-Chun in the fourth round and was eliminated by Nyam-Ochir Sainjargal in the repechages.On August 6, 2012, Delpopolo was expelled from the Olympics by the IOC after he tested positive for cannabis.
Upon exiting the games, Delpopolo stated the positive test result was caused by "inadvertent consumption of food that I did not realize had been baked with marijuana, before I left for the Olympic Games." On August 9, 2016, Delpopolo competed again at the 2016 Summer Olympics in the men's 73 kg event, defeating Ahmed Goumar (Niger) in the first round, Odbayar Ganbaatar (Mongolia) in the second round, and ultimately losing to Miklós Ungvári (Hungary) in the Quarter-finals by penalty points.
Delpopolo ultimately finished 7th in his division.