Before playing for the senior Turkey national basketball team, İlyasova was named the MVP of the 2006 FIBA Europe Under-20 Championship, after leading Turkey's junior national team to a silver medal in İzmir. İlyasova has since represented Turkey at the 2006 FIBA World Championship, EuroBasket 2007, EuroBasket 2009, 2010 FIBA World Championship, EuroBasket 2011, EuroBasket 2013 and EuroBasket 2015.