Myers was a part of the national team that earned gold at the 2008 IIHF World U18 Championships in Kazan, Russia. He was later named to the Canadian under-20 team for the 2009 World Junior Championships in Ottawa, along with Kelowna Rockets teammate Jamie Benn, and helped Canada to a record-tying fifth straight gold medal. On April 29, 2010, Myers was named to the Team Canada roster for the 2010 IIHF World Championship. He was part of a young squad that finished without a medal.