St Thomas' Church of North Sydney, Anglican church in North Sydney, Australia

St Thomas' Church is an Anglican church building with Gothic Revival features including pointed arches and detailed stonework throughout its structure. The interior showcases handcrafted stained glass windows that display biblical scenes and fill the space with colored light.

The first St Thomas' church, designed by Conrad Martens, opened in 1846; Martens carved its baptismal font, still used today. As North Sydney grew, Edmund Blacket designed a larger Gothic Revival church whose cornerstone was laid in 1881 by the Prince of Wales (later George V); it was completed in 1886.

The parish holds three Sunday services, at 8:00, 10:00 and 17:00. The Church by the Bridge, a church plant of St Thomas', extends the parish's work. On 20 October 2024 King Charles III and Queen Camilla attended a service here during their Australian tour, and the sermon was preached by Archbishop Kanishka Raffel.

St Thomas' stands at the corner of Church and McLaren streets, a short walk from North Sydney's central business district. Sunday services are held at 8:00, 10:00 and 17:00, so visitors wanting the interior to themselves should avoid those times. The site is on the local government heritage register and the former Register of the National Estate.

At 160 feet long, St Thomas' is the longest Anglican church in New South Wales. The 1881 cornerstone was laid by the Prince of Wales, later George V, and the building was completed in 1886. The baptismal font was carved by Conrad Martens, who designed the first church on the site.