Shirley McCay (born 7 June 1988) is an Ireland women's field hockey international. She was a member of the Ireland team that played in the 2018 Women's Hockey World Cup final. McCay has played in the Women's Irish Hockey League for Old Alex, Ulster Elks and Pegasus. She was a member of the Ulster Elks team that won two successive Irish Senior Cup titles in 2014–15 and 2015–16. Since 2015 she has been Ireland's most capped women's field hockey international.