The Eparchy of Saint Thomas the Apostle is a Chaldean Catholic diocese in Sydney, Australia, and is immediately subject to the Holy See.
The eparchy was created in 2006.[1] Archbishop Jibrail Kassab was appointed bishop at that time.[2] In 2015, he was succeeded by Archbishop Amel Shamon Nona.[3] The see has been vacant since April 12, 2026.
Parishes
- St. Thomas the Apostle Chaldean & Assyrian Catholic Cathedral, Bossley Park, New South Wales, Australia
- St. Mary's Assumption Chaldean Catholic Church, Fairfield, New South Wales, Australia
- St. Joseph Chaldean Catholic Church, Mount Druitt, New South Wales, Australia
- St. George Chaldean Catholic Church, Campbellfield, Victoria, Australia
- Our Lady Guardian of Plants Chaldean Catholic Church, Campbellfield, Victoria, Australia
- St Addai Chaldean Catholic Church, Manukau, Auckland, New Zealand