 Berni has been capped by the Italian youth teams, from as young as the U16's to the U21 side and finished runners-up with the Italian U20 team at the Toulon Tournament in 2002 and 2003.He received two caps for the Italy U17 side (called U16 team until 2001) at the 2000 UEFA European Under-16 Football Championship qualification and Italy U19 side at the 2002 UEFA European Under-19 Football Championship that reached the third qualifying round.He made one appearance in the 2006 UEFA European Under-21 Football Championship qualification.