Gillian "Jill" Slattery (born 25 May 1945) is a female retired British swimmer.

Slattery won a bronze medal in the 200 metres breaststroke at the 1966 European Aquatics Championships.

[1] She competed in the same event at the 1964 and 1968 Summer Olympics and finished fifth in 1964.

[3] At the ASA National British Championships she won the 110 yards breaststroke title in 1964 and the 220 yards breaststroke title in 1967 and 1968.

This biographical article related to a British swimmer is a stub.