On October 7, 2011, Haraguchi debuted for the Japan national team against Vietnam. He played many matches as left midfielder under manager Vahid Halilhodžić from summer 2015. In 2018, he was selected Japan under manager Akira Nishino for 2018 World Cup. He played 3 matches as right midfielder and scored a goal against Belgium at the round of 16 match. He also participated 2019 Asian Cup. He played all 7 matches and scored 2 goals, Japan won the 2nd place.