St. Petka Macedonian Orthodox Church, Mill Park, Macedonian Orthodox church in Mill Park, Melbourne, Australia

St. Petka Macedonian Orthodox Church is a bluestone building with slate roof tiles and extensions on both sides located in Mill Park. The structure combines Victorian architectural elements with later additions that expanded the space for the congregation.

The building was originally constructed in 1861 as Janefield Presbyterian Church and served that congregation for over a century. The Australian-New Zealand Macedonian Orthodox Diocese purchased it in the late 1990s and transformed it to serve the Macedonian Orthodox community.

The church keeps the Macedonian Orthodox name Sveti Petka, and its interior was remade in a Byzantine-Orthodox design after 1997. A Romanian iconographer painted frescoes on every interior wall, and during the liturgy candles, incense, ritual foods and choir singing fill the small space. The local Macedonian community marked the church's twentieth anniversary in November 2017.

The church hosts Divine Liturgies, weddings, baptisms, and religious celebrations throughout the year. Visitors should check ahead for service times or visit during major religious observances to experience the community gathering.

The building was added to a non-statutory heritage list by the Victorian branch of the National Trust, not the Victorian Heritage Register; a 1990 Whittlesea study had only proposed state and national listing. The local Macedonian community marked the church's twentieth anniversary there in November 2017.