Elpidophoros of America (Greek: Ελπιδοφόρος, Greek pronunciation: [e̞l.pi.ðo̞ˈfo̞.ɾ̠o̞s̠]); born Ioannis Lambriniadis (Greek: Ιωάννης Λαμπρυνιάδης; 28 November 1967) is a bishop of the Ecumenical Patriarchate of Constantinople and a professor at the Faculty of Theology of the Aristotle University of Thessaloniki. Since 22 June 2019, he has served as the archbishop and primate of the Greek Orthodox Archdiocese of America.

As Archbishop of America, his official title is His Eminence Archbishop Elpidophoros (Lambriniadis) of America, Most Honorable Exarch of the Greek Orthodox Archdiocese of America. He is the eighth Archbishop of America elected since the establishment of the Greek Orthodox Archdiocese in 1922.

Archbishop Elpidophoros was born Ioannis Lambriniadis in Istanbul's Bakırköy district (Makrohori), Turkey, to Vassilis and Nadia Lambriniadis on November 28, 1967. He attended the Urban School of Makrochori in Istanbul and later completed high school in Athens, Greece. Graduating with highest honors from Aristotle University of Thessaloniki in 1991 with a Bachelor's degree in Theology, he continued his studies at the University of Bonn in Germany, earning a Master of Arts degree in Philosophy in 1993. He studied Arabic at the University of Balamand, Lebanon and obtained a Ph.D. in Theology from Aristotle University of Thessaloniki in 2001, again graduating with highest honors.

Archbishop Elpidophoros is a tenured Professor of Theology at the Aristotle University of Thessaloniki. He assumed the position of associate professor at Aristotle University's Department of Pastoral and Social Theology in 2011, and has taught courses in the areas of Comparative Theology, Inter-Orthodox & Inter-Christian Relations, and the Ecumenical Movement. He was promoted to the rank of full tenured professor in 2018. Additionally, he served as a visiting professor of theology for one semester at the Holy Cross Greek Orthodox School of Theology in Brookline, Massachusetts, in 2004.

In 1994, he was ordained deacon at the Patriarchal Church of St. George in the Phanar in Istanbul and was appointed as the Codecographer of the Holy and Sacred Synod. "In 1995, he was appointed Deputy Secretary of the Holy Synod of the Ecumenical Patriarchate."

In March 2005, at the proposal of the Ecumenical Patriarch Bartholomew, he was appointed to the position of Chief Secretary and was ordained to the priesthood by the Ecumenical Patriarch Bartholomew I. He was installed as the Metropolitan of Bursa on 20 March 2011. In August of the same year, he was appointed Abbot of the Monastery of the Holy Trinity on Heybeliada.

On 11 May 2019, he was elected by the Holy Synod of the Ecumenical Patriarchate of Constantinople as next Archbishop of America to succeed Archbishop Demetrios. He was enthroned in New York City on 22 June 2019.

After he became Archbishop, he has since served as Chairman of the Board of Trustees at Hellenic College Holy Cross.