Christa Stubnick (; née Christa Seliger on 12 December 1933 – 13 May 2021) was an East German sprinter who competed for the United Team of Germany in the 1956 Summer Olympics. She won silver medals in the 100 m and 200 m events, splitting the Australians Betty Cuthbert (winner) and Marlene Matthews (third). Her 4 à100 m relay team finished sixth.