Elsy Rivas is a Colombian sprinter. She competed in the women's 400 metres at the 1972 Summer Olympics. She won a bronze medal in the 4 x 100 metres relay at the 1971 Pan American Games.
Elsy Jacobs (1933–1998) was a Luxembourgish road bicycle racer. She became the first ever women's Road World Champion when she won the inaugural race on 30 August 1958. Later the same year she broke the women's hour record on 9 November, riding 41,347 m on the Vigorelli velodrome in Milan; the record stood for 14 years.