Marthe Dupont-Trasenster (n̩e Trasenster; 30 March 1892 Р15 November 1979) was a Belgian tennis player.
She represented Belgium in the 1920 Summer Olympics and in the 1924 Summer Olympics. She was also a Belgian national tennis champion in 1921 and 1930.
In 1911, Marthe married a Belgian sport shooter, ÃÂmile Dupont who won a silver medal in the 1920 Summer Olympics and also participated in the 1924 Summer Olympics representing Belgium.
Her cousin, Marguerite Chaudoir, was also a Belgian tennis player.