St Monica's Old Cathedral, Cairns

St Monica's Old Cathedral
St Monica's Old Cathedral, 2025
LocationMinnie Street, Cairns City, Cairns, Cairns Region, Queensland, Australia
Coordinates16°55′02″S 145°46′20″E / 16.9171°S 145.7721°E / -16.9171; 145.7721
Design period1919–1930s (interwar period)
Built1927
ArchitectLawrence and Lordan
Architectural style(s)Spanish Mission
Official nameSt Monica's Old Cathedral, St Monica's Cathedral, St Monica's Church and School
TypeState heritage (landscape, built)
Designated1 July 1997
Reference no.601750
Significant period1920s–1968 (historical)
ongoing (social)
Significant componentsCathedral, gymnasium, views to, gate – entrance, school/school room
BuildersMichael Garvey
Location of St Monica's Old Cathedral in Queensland
St Monica's Old Cathedral, Cairns (Australia)

St Monica's Old Cathedral is a heritage-listed former Roman Catholic cathedral at Minnie Street, Cairns City, Cairns, Cairns Region, Queensland, Australia. It was designed by Lawrence and Lordan and was built in 1927 by Michael Garvey. It is also known as St Monica's Cathedral and St Monica's Church & School. It was added to the Queensland Heritage Register on 1 July 1997.

Following completion of the new St Monica's Cathedral, the building was deconsecrated as a church and has subsequently been repurposed as offices for the Diocese of Cairns and local parish.