In 2013, Germany coach Silvia Neid named her to the Germany squad for the 2013 UEFA Women's Euro competition. In the semifinal of the tournament, she scored a goal versus Sweden, a weak shot from outside the box that slowly found its way to the back of the net. The goal was enough to send them to the final against Norway, where she started the match behind striker Célia Okoyino da Mbabi. Germany won the final thanks to two Nadine Angerer penalty saves and a close-range Anja Mittag shot, giving Marozsán her first major international title. Marozsán was named to the UEFA team of the tournament for her performances throughout the competition.