Georgios Xenopoulos, SJ (Greek: Γεώργιος Ξενόπουλος; 23 August 1898 – 28 January 1980) was a Greek Jesuit and prelate of the Catholic Church. From 1947 until his retirement in 1974, he was the Bishop of Santorini and the Bishop of Syros. In addition, he was at various times the apostolic administrator of the Archdiocese of Athens, the Diocese of Crete, and the Apostolic Vicariate of Salonica. He died in 1980, aged 81.