The Metropolis of Hong Kong and Southeast Asia (Chinese: 正教會普世宗主教聖統香港及東南亞都主教教區) is a metropolis or archeparchy of the Ecumenical Patriarchate of Constantinople in the Eastern Orthodox Church, and is equivalent to an archdiocese in the Catholic Church. Centered on the city of Hong Kong, it has jurisdiction over Eastern Orthodox Christians in Hong Kong, Macao, China, Taiwan, Mongolia, the Philippines, Vietnam, Cambodia, Laos, Thailand and Myanmar. It was established in November 1996 by the Holy Great Synod of Constantinople.^[1] The incumbent metropolitan is Nektarios Tsilis.

For some years, a small community of Eastern Orthodox Christians maintained Eastern Orthodoxy in Hong Kong. Although services with a priest were infrequent, they continued to practice Eastern Orthodox Christianity. A small delegation, representing the St. Luke Orthodox Community, approached Patriarch Bartholomew I of Constantinople requesting a full-time clergyman to serve the needs of the faithful and minister to the local people. With the efforts of Bishop Athenagoras (later Metropolitan of Mexico, Central America and Caribbean, with seat in Panama), a systematic plan was developed. Based on the Bishop's research and advice, the Holy and Sacred Synod of Constantinople founded the new Orthodox Metropolitanate of Hong Kong and South East Asia in November 1996, with jurisdiction over: Hong Kong, Macao, China, Taiwan, Mongolia, Philippines, Vietnam, Cambodia, Laos, Thailand, Myanmar and also Singapore, Indonesia, Malaysia, Brunei, East Timor, Maldives, Sri Lanka, Bangladesh, India, Nepal, Pakistan and Afghanistan.^[2][3]

On December 2, 1996, Archmandrite Nikitas (Lulias) was elected as the first Orthodox Metropolitan of Hong Kong and assigned the ecclesiastical responsibilities of Southeast Asia. On January 12, 1997, the Enthronement of Nikitas Lulias as the first Metropolitan of the OMHKSEA took place at the Orthodox Cathedral of St. Luke, Stanley Fort, Hong Kong, with Metropolitan Athenagoras of Panama representing the Ecumenical Patriarchate.

In August 2007, Metropolitan Nikitas was transferred to become Metropolitan of Dardanellia, and OMHKSEA remained vacant for a few months. On January 9, 2008, the Holy and Sacred Synod of the Ecumenical Patriarchate decided to split the large area of OMHKSEA, creating a new Metropolitanate of Singapore and South Asia with jurisdiction over Singapore, Indonesia, Malaysia, Brunei, East Timor, Maldives, Sri Lanka, Bangladesh, India, Nepal, Pakistan and Afghanistan. The Metropolitanate of Hong Kong retained jurisdiction over: Hong Kong, Macao, China, Taiwan, Mongolia, Philippines, Vietnam, Cambodia, Laos, Thailand and Myanmar.^[4] On the same day, Archimandrite Nektarios (Tsilis) was elected as the New Metropolitan of OMHKSEA. His ordination took place on January 20, 2008, at the patriarchal St George Holy Church of the Ecumenical Patriarchate in Phanar, Constantinople (Istanbul), Turkey, and his enthronement took place on March 1, 2008, at the Orthodox Cathedral of St. Luke, Stanley Fort, Hong Kong.^[5] The Davao parish, a recent addition to the OMHKSEA, first opened in 2018.

• Christianity in Hong Kong
• Exarchate of the Philippines
• Eastern Orthodox Metropolis of Korea
• Patriarchal Exarchate in South-East Asia (Moscow Patriarchate) – an exarchate of the Russian Orthodox Church

• Kiminas, Demetrius (2009). The Ecumenical Patriarchate: A History of Its Metropolitanates with Annotated Hierarch Catalogs. Wildside Press LLC. ISBN 9781434458766.

• Official Site - Orthodox Metropolitanate of Hong Kong and Southeast Asia
• AsiaNews: Nektarios is the new Orthodox bishop of Hong Kong