Marlene Thomsen

Marlene Thomsen (born 5 May 1971 in Vejle) is a former badminton player from Denmark.

Thomsen competed in badminton at the 1992 Summer Olympics in women's doubles with Lisbet Stuer-Lauridsen. In the first round, they defeated Denyse Julien and Doris Piche of Canada 15-7, 15-7. In the second round they were beaten by the eventual silver medalist, Guan Weizhen and Nong Qunhua of China, 15-3, 15-12.

She also competed in badminton at the 1996 Summer Olympics in women's doubles with Lisbet Stuer-Lauridsen. In the first round, they defeated Linda French and Erika von Heiland of the United States and in the second round Chung Jae-hee and Park Soo-yun of Korea. In quarterfinales they lost against Qin Yiyuan and Tang Yongshu of China 15-8, 15-3.