Marcel Vigneron (born May 3, 1980) is an American chef best known as the runner-up of the second season of Top Chef, which aired 2006–2007, placing behind Ilan Hall. In 2011, he had his own television program on Syfy, Marcel's Quantum Kitchen, in which he started and ran a molecular gastronomy catering company; it was cancelled after 6 episodes. He later competed on Top Chef: All-Stars in 2011, and on The Food Network's The Next Iron Chef in 2012.