Van Doren played for the Belgian under-21 national team at the 2016 Junior World Cup, where they won the silver medal. He made his debut for the senior national team in a test match in South Africa. He was the second goalkeeper of the Belgian team that won the 2018 World Cup. He played in one game in the 2019 EuroHockey Championship, where Belgium won their first European title. On 25 May 2021, he was selected in the squad for the 2021 EuroHockey Championship.