St. John's Cathedral (Chinese: 聖約翰座堂), officially The Cathedral Church of St. John the Evangelist and located at 4 Garden Road, Central, is an Anglican cathedral in Hong Kong. It is the Diocesan cathedral of the Diocese of Hong Kong Island and the focus of the Province of Hong Kong Sheng Kung Hui (traditional Chinese: 香港聖公會; also known as Hong Kong Anglican Church). It also houses the seat of the Archbishop of Hong Kong.
The Anglican cathedral is one of the five cathedrals in the city, the others being SKH Eastern Kowloon diocesan cathedral of Holy Trinity, Kowloon City, SKH Western Kowloon diocesan cathedral of All Saints, the cathedral on Arbuthnot Road of the ecumenical patriarchate of the Orthodox Metropolinate of Hong Kong and South-East Asia (i.e. the Orthodox Church), and the Roman Catholic Immaculate Conception Cathedral. St. John's Cathedral is the oldest surviving Western ecclesiastical building in Hong Kong, and the oldest Anglican church in the Far East, opening for service on Sunday, 11 March 1849. It was declared a monument in 1996. It is notable that the Cathedral is located at the centre of Powers of Hong Kong as it is surrounded by the Bank of China Tower, HSBC Building (economic), Legislative Council Building (legislative), Central Government Offices (executive) and the Court of Final Appeal (judicial).