All Serbian Saints Serbian Orthodox Church, Serbian Orthodox church building in Mississauga, Canada

All Serbian Saints Serbian Orthodox Church is a Byzantine-style church in Mississauga, Ontario, with a square cross plan and a single cupola over the central part. It has three rows of choir galleries and a hand-made iconostasis; the frescoes were painted by three Belgrade fresco painters under iconographer Dragomir "Dragan" Marunić and consecrated in 2012.

The parish bought the former school property in Applewood Heights on 6 June 1983 and renamed the building the Serbian Centre. Toronto architect Milutin Kopsa took over the church design on 17 January 1993, and Patriarch Pavle laid the foundation stone on 14 June 1994. Construction resumed on 15 August 1999, the first liturgy was served on 10 September 2000, and the church was completed and consecrated in 2002.

The parish is named for the Feast of All Serbian Saints, and the church's slava is celebrated on 10 September, the day the first Holy Liturgy was served there in 2000. The Serbian Centre next door, with three parishes covering Mississauga and nearby towns, hosts lectures and gatherings; Jovan Rašković spoke there in 1990.

The church stands at 1375 Applewood Road in the Applewood Heights area of Mississauga, next to the Serbian Centre, the 1921 former school building. The main entrance faces the portico where the Serbian Canadian Monument was placed in 2022. Visitors should check the parish website for service times before arriving, since the first liturgy was only served in 2000.

A monument honoring the first Serbian settlers in Ontario has stood on the church grounds since July 2022. This memorial tells the story of Serbian settlement and arrival in the region.