Yvonne Saunders-Mondesire (born 9 October 1951) is a Jamaican-Canadian former track and field athlete.
A versatile athlete, she competed in women's pentathlon, long jump, high jump, 400 metres and 800 metres.
She competed internationally for Canada, Jamaica, and England during her career.
She was a double medallist for Jamaica at the 1971 Pan American Games and was the 400 m champion at the 1974 British Commonwealth Games for Canada.
She competed twice at the Summer Olympics: in 1972 for Jamaica and in 1976 for Canada.