Toowoomba City Hall, Heritage government building in Ruthven Street, Toowoomba, Australia

Toowoomba City Hall is a heritage-listed town hall at 541 Ruthven Street, designed by Willoughby Powell and built in 1900 by Alexander Mayne. It is the third town hall for Toowoomba and was the first purpose-built city hall constructed in Queensland. The building originally housed municipal offices, council chambers, a school of arts, a technical college and a public hall.

Toowoomba City Hall, the city's third town hall, was built in 1900 to a design by Willoughby Powell on the site of the School of Arts, which had been badly damaged by fire on 21 June 1898. It was the first purpose-built city hall constructed in Queensland and the location for the proclamation that Toowoomba was a city. It was added to the Queensland Heritage Register on 21 October 1992.

The building's name alternates between Toowoomba City Hall and Toowoomba Town Hall, reflecting its 1900 origin as a town hall before Toowoomba became a city. It was here that the proclamation making Toowoomba a city was read. The hall was designed to house municipal offices, council chambers, a school of arts, a technical college and a public hall.

The hall stands at 541 Ruthven Street, on the block the council bought in 1887 for the School of Arts. The exterior, including the Ruthven Street frontage, can be viewed from the footpath at any time; entry to the municipal offices and hall depends on council opening hours, so check before planning an interior visit.

The 1898 design competition was judged twice: William Hodgen's winning entry was rejected by the council, and a second contest with a 25-guinea prize went to Willoughby Powell's entry titled "Sincerity". Powell then had to hand supervision of the build to Toowoomba architects James Marks and Son when he joined the Works Department permanently in 1899.