Owen Casey (born 22 October 1969 in Dublin) is a former tennis player from Ireland.

Casey is a three-time tennis Olympian playing in Seoul '88, Barcelona '92 and Atlanta '96. The right-hander reached his highest singles ATP-ranking on 12 October 1992, when he became World Number 228. Casey won 33 of his 49 Davis Cup matches for Ireland. He runs a camp in Mountpleasant tennis club, Dublin.