St Mary's Church, Anglican church in Causeway Bay, Hong Kong.

St Mary's Church is one of Hong Kong's two surviving Chinese Renaissance-style churches, designed by Chau & Lee Architects. Its front facade imitates a Chinese imperial court, approached by dozens of stone steps, while the interior follows a traditional Western church layout. It stands at 2A Tai Hang Road, near Tung Yuen Road and Causeway Bay Road.

St Mary's Church grew from a chapel built for the Eyre Diocesan Refuge for Destitute Women, founded in Causeway Bay in the early 20th century; Bishop Gerard Lander bought the land and a small chapel was erected. With 600 members by 1920, Bishop Charles Duppuy launched a building fund in 1930 and bought over 6,000 square feet. Work began on 12 September 1936, the opening was held on 23 December 1937, and the consecration took place on 20 December 1940.

The church's name comes from the Eyre Diocesan Refuge for Destitute Women, whose residents first gathered in a small chapel on this site. In the 1930s the Anglican Church in China promoted localisation, so the design adopted Chinese classical forms. The church remains an active Anglican parish in Causeway Bay.

The church sits in a residential area served by nearby bus stops and public transport connections that make it easy to reach from different parts of the district. The location is accessible during daylight hours and welcoming to casual visitors exploring the neighborhood.

The building started as a small chapel serving a nearby welfare institution and developed into an independent place of worship for the growing community. This transformation reveals how religious spaces in Hong Kong adapted to serve changing neighborhood needs over time.