Alexandra Lindsay "Alex" Croak (born 9 July 1984) is an Australian diver and gymnast who is a dual Olympic representative.

She represented Australia as a gymnast at the 2000 Summer Olympics in Sydney and after a strong performance at the 2008 Australian national Diving Championships, she was selected for Australia's diving team for the 2008 Summer Olympics in Beijing.

[2] She is the first Australian athlete to win gold medals at the Commonwealth games in two different disciplines (diving and gymnastics).

Croak's parents were both enthusiastic sports people who encouraged their children to compete.

She finished second behind Melissa Wu in the 10 m platform at the 2009 Australian Diving Championships and was named on the team to compete in Rome in July.