Cornelia "Cor" Aalten (later Strannood, 14 September 1913 – 21 January 1991) was a Dutch athlete. She competed at the 1932 Olympics in the 100 m and 4 × 100 m sprint events and finished fourth in the relay.^[1]

In 1934 she won a national title in the pentathlon and a silver medal at the 1934 Women's World Games in the 4 × 100 m relay (with Cor Aalten, Jo Dalmolen, Agaath Doorgeest and Iet Martin).

Aalten worked as stenographer with the company Gerritsen en van Kempen in Zeist.