Internationally, Faulk has represented the United States at four different events. He helped the Americans win gold at the 2010 IIHF World U18 Championships and bronze during the 2011 World Junior Ice Hockey Championships. He also played at the Senior level at the 2012, 2013 and the 2014 World Championships, and made his Olympic Debut at the 2014 Winter Olympics in Sochi. Faulk was the youngest player on Team USA's roster for the 2014 Olympics, at the age of 21.