The Nicholas Building is a landmark historic office and retail building located at 37 Swanston St, at the intersection of Swanston Street and Flinders Lane, in the Melbourne central business district, Victoria, Australia. Designed by architect Harry Norris and completed in 1926, it is the grandest example in Melbourne of what is known as 'Commercial Palazzo' style, featuring a solid base, vertical middle floors, and a large cornice. It has housed a range of small businesses, and is now known for its creative industry tenants such as fashion designers and artists and specialist retailers. It had the longest operating manual lifts in the city, and the ground floor Cathedral Arcade is one of the most notable 1920s interiors in the city. The building is listed by the National Trust and by Heritage Victoria.

Swanston Street is a major thoroughfare in the Melbourne central business district, Victoria, Australia. It was laid out in 1837 as part of the original Hoddle Grid. The street vertically bisects Melbourne's city centre and is famous as the world's busiest tram corridor, for its heritage buildings and as a shopping strip.