Cornelia Bürki (born 3 October 1953) is a South African-born retired long-distance runner who represented Switzerland in three consecutive Olympic Games,[1] starting in 1980, with her best result being fifth in the 1984 3000 metres final.

She is a 47-time Swiss national outdoor champion, which includes a fifteen-year undefeated streak in cross country and fifteen consecutive titles over 1500 metres, from 1975 to 1989.

She was fifth in the women's 3000 m at the 1984 Summer Olympics and also took fifth in the long race at the 1985 IAAF World Cross Country Championships.

She was selected to represent Switzerland at the 1986 European Athletics Championships, and finished seventh in the 3000 m final and 8th in the 1500m.

After bad luck with a severe upper leg injury, she still managed to qualify for her final Olympics in 1988 in Seoul, where she competed in both the 1500 m and 3000 m races.

At the cross Swiss country championships in 1988 she slipped and pulled the Sartorius muscle so badly that she was unable to train for weeks.

She still managed to qualify for the Olympics in Seoul, although the injury caused problems for the next two years, until she officially retired from running.

Since 1981, she has been the primary care-giver of her daughter Esther, who was in a coma for six months after a car accident and uses a wheelchair.