St. Stephen's Church, Anglican church in Chambly, Quebec, Canada

St. Stephen's Church is a church building in Chambly constructed between 1820 and 1822 from dressed stone and featuring Palladian architectural elements. The small rectangular structure has a three-tiered steeple, a columned porch, semicircular windows, and an interior with a barrel-vaulted ceiling, side galleries supported by columns, wooden pews, and an altar at the front.

The church was built in the early 1820s to serve soldiers from the nearby fort and local residents. In the 1830s, galleries were added to increase seating capacity, and the building was designated a national historic site of Canada in 1970.

The church is dedicated to Saint Stephen, the first Christian martyr, a name shared with the garrison's Anglican tradition. Its cemetery holds the graves of British soldiers and early Loyalist settlers, and the adjacent Randell Hall, named after a local family, hosts community gatherings. The building remains an active Anglican parish.

The building sits in a quiet, tree-lined setting surrounded by an old cemetery near Fort Chambly. An adjoining hall called Randell Hall provides space for community events and extends the usefulness of the church grounds.

The church's 1820 stone construction makes it one of the oldest Anglican stone churches in Quebec. It was classified as a heritage immovable in 1965 and designated a National Historic Site of Canada in 1970.