Duggan was chosen to the 2010 US Olympic team. At the Olympics, Duggan played mainly with Gigi Marvin and Natalie Darwitz. She finished the tournament with four goals, as the American team captured the silver medal. At the 2011 IIHF Women's World Championship, Meghan Duggan was among the tournament's top five scorers. Duggan was fifth with seven points (four goals, three assists).