In 2008, Nocioni was selected to play with Argentina in the Beijing Summer Olympics. Argentina advanced to the quarter-final with four wins, placing behind Lithuania in the group stage, after defeating Russia. In the game against Russia, Nocioni hit 4 three-pointers, finishing with 19 points. After defeating Greece in the quarterfinals, the Argentine team lost their Olympic semifinals rematch from 4 years earlier against the US team. Due to knee tendinitis, Nocioni only played 18 minutes, scoring 10 points, and securing 4 rebounds. Argentina next played Lithuania, in the bronze medal match, which Argentina won 87–75. Nocioni scored 14 points in that game.