Boutsianis has four international caps for Australia. His first cap came during the 2002 World Cup qualification match against Tonga, which Australia won 22–0, breaking the world record for the largest win an international match. Boutsianis came on as a substitute and scored a goal in that match. On the next match, against American Samoa, he was named as a starter. He scored three goals as Australia went on to break their own record by winning 31–0. The first goal was scored directly from a corner kick, where Boutsianis cross curled and ended up behind the goal line. He then made two more appearances for Australia, the last one came on August 2001 in a match against Japan. He finished the national team with a record of 4 goals from 4 appearances.