Sabonis made his debut for the Lithuanian men's national team in July 2015 in a game against Australia. At just 19 years old, Sabonis became the youngest player to ever represent Lithuania at the national level, a record previously held by Jonas Valanciunas. Despite his youth, Sabonis quickly proved himself to be a valuable asset to the team, scoring 4 points and grabbing 7 rebounds in his debut game.

Sabonis went on to play for Lithuania at EuroBasket 2015, where he played a significant role in helping the team win a silver medal. During the preparation games leading up to the tournament, Sabonis averaged 6 points and 5.9 rebounds, cementing his status as one of the team's top players.

Sabonis also represented Lithuania at the 2016 Summer Olympics, where he averaged 5.5 points and 4.5 rebounds per game. While Lithuania did not medal at the Olympics that year, Sabonis' strong performance helped establish him as a rising star in the international basketball scene.

In addition to his success with the Lithuanian national team, Sabonis has also been an ambassador for Lithuanian basketball. He has spoken publicly about his pride in his Lithuanian heritage and the importance of representing his father's homeland on the international stage.

Overall, Domantas Sabonis has had a significant impact on the world of basketball, both in the NBA and on the international stage as a member of the Lithuanian national team. His talent, skill, and passion for the game have earned him the respect and admiration of fans around the world.