Nettie Nielsen (born 23 July 1964) is a retired female badminton player from Denmark.

Nielsen won the gold medal at the 1988 and 1990 European Badminton Championships in women's doubles with Dorte Kjaer.

[1] She took a silver medal in the girls singles event at the European Junior Badminton Championships in 1981.

Together with compatriot Dorte Kjaer she won the European juniors girls doubles title in 1981.

Nettie Nielsen and Dorte Kjaer won a bronze medal in Women's doubles at the 1988 Summer Olympics in Seoul when badminton was an exhibition sport.