Pratto received his first international call-up for Argentina on 12 August 2016, for 2018 FIFA World Cup qualification matches against Uruguay and Venezuela. He started for the national team for the first time in the match against Uruguay on 1 September 2016, and scored his first goal against Venezuela on 7 September. Pratto scored his second international goal helping Argentina to a 3–0 win over Colombia in November 2016.
