In 2011 and 2013, he won silver medal at the World Men's Handball Championship. In 2016, he was part of the Danish team that won Olympic gold. With the Danish national team, he won the 2019 World Men's Handball Championship. He is the older brother of fellow THW Kiel player and Danish international Magnus Landin Jacobsen. Landin Jacobsen was named the IHF World Player of the Year for 2019. In 2021, he won the 2021 World Men's Handball Championship, posting a save rate of 30%.