Mary Ormsby (1927-2019) was an international lawn bowls competitor for Australia.

[1] She won a silver medal in the triples with Norma Massey and Connie Hicks and the bronze medal with Pam Hart, Hicks and Jean Turnbull at the 1969 World Outdoor Bowls Championship in Sydney.

[2] She also won a silver medal in the team event (Taylor Trophy) in 1969.

[3] She is the only person to have won all three Australian National Bowls Championships – the singles in 1969, the pairs (with Erica Murada) and the fours.

[6] In 1985 she was awarded the Order of Australia Medal for services to the sport.