Le Mat Trophy
He returned to Frölunda for the 2015–16 season. In 47 games, Larsson recorded 5 goals and 9 assists for 14 points. He had 3 assists in 16 postseason games as Frölunda captured the Le Mat Trophy. Additionally, the team also won the Champions Hockey League (CHL) Championship, where Larsson contributed 5 points in 13 games. On 28 April 2016, he signed an amateur try-out with the Ducks' American Hockey League (AHL) affiliate, the San Diego Gulls. He appeared in one playoff game for the club.