Greta Hayes (born 17 October 1996) is an Australian field hockey player.

[3] At the tournament, Hayes scored two goals, with the team securing the bronze medal after defeating Spain in a penalty shoot-out.

[5] Hayes made her international debut for Australia in November 2018, at the Hockey Champions Trophy.

Hayes was one of four players included in the team who were not part of Hockey Australia's centralised training program at the time.

This biographical article relating to an Australian field hockey figure is a stub.