Marius Thuesen

Marius Laurits Theodor Jensen Thuesen (23 January 1878 – 12 July 1941) was a Danish gymnast who competed in the 1906 Summer Olympics and in the 1908 Summer Olympics.

At the 1906 Summer Olympics in Athens, he was a member of the Danish gymnastics team that won the silver medal in the team, Swedish system event. Two years later he was part of the Danish team that finished fourth in the team competition.