Milevskyi began playing internationally for Belarus, being a part of the nation's unsuccessful qualifying campaign for the 2000 UEFA European Under-16 Championship, before taking Ukrainian nationality. Because he played for the Belarus under-16 team, there was a big international issue in 2003 him joining the Ukrainian side. After some dialogues between Belarusian and Ukrainian federations, an agreement was finally reached. He was part of the Ukraine under-19 team which finished as semi-finalists at the 2004 UEFA European Under-19 Championship. In next year's FIFA World Youth Championship, Milevskyi and Ukraine were ousted in the round of 16.