Australian Mutual Provident Society Building, Heritage office building in Townsville, Australia

The Australian Mutual Provident Society Building is a three-story heritage office building in Townsville. Its facade features classical architectural elements and pink granite from the Hervey Range.

The AMP Society opened a district agency in Townsville in April 1883 in a small galvanised-iron-roofed timber building. Its first purpose-built Townsville office, a two-storey brick building by Blackmann and Sulman, was occupied in January 1888. By 1937 the Society needed larger premises, and this three-storey building, designed by Hall and Cook and built by Stuart Brothers, opened on 21 February 1938.

Above the pediment, a marble tableau showed the Society's motto, Amicus certus in re incerta, "a certain friend in an uncertain event". An Amicus tableau was placed on every AMP building until the logo changed in 1988, and it was usually removed once the Society left the premises.

The building stands at 416–418 Flinders Street, on the corner of Stanley Street, west of the earlier AMP office. The ground floor was occupied by the Society, with two offices let to tenants and the upper floors set aside for letting. The building is not a public museum; interior access depends on the current occupants.

This building was the first in Townsville to have air conditioning, marking a major breakthrough in commercial building technology. This innovation set it apart as a leader in modern office design.