Cathedral of St Stephen, Brisbane, Gothic Revival cathedral in Brisbane, Australia

The Cathedral of St Stephen is a Gothic Revival cathedral of Brisbane tuff and freestone, cruciform in plan, with a square tower and a steeply pointed traceried window framed by a gable and slim spire. Inside, clustered columns rise to a ribbed vaulted ceiling, stained glass from Munich lines the walls, and a white baptismal font stands in the centre aisle before the altar steps.

James Quinn, Brisbane's first bishop, laid the foundation stone on 26 December 1863, but Benjamin Backhouse's grand design stopped at the foundations. R George Suter's simpler church rose 1870–74, with front gables and spires finished in 1884. From 1917 Archbishop James Duhig had Hennessy, Hennessy & Co add the crossing, transepts and sanctuary in 1920–22, after the planned Holy Name Cathedral was abandoned.

The cathedral is named for Saint Stephen, a first-century martyr, and its foundation stone was laid on his feast day, 26 December 1863. The site also holds St Stephen's Chapel, designed by Augustus Pugin and built 1847–1850, the oldest Catholic church in Queensland, which served as the first bishop's cathedral from June 1859.

The cathedral stands on a block bounded by Elizabeth, Charlotte, Creek and Edward Streets, with Old St Stephen's Chapel immediately to its south-west. The 1980s refurbishment replaced the interior furnishings and fittings and added a carpark beneath the extended east end. The Francis Rush Centre, completed in July 2005, holds the administration offices and an outdoor liturgical space used for the Easter Vigil and Palm Sunday.

The Mayne window is a stained-glass work by Harry Clarke above the sanctuary on the east wall, not above the altar. It is named for the Mayne family, and the cathedral's other stained glass was imported from Munich.