Thunder Bay Historical Museum, Local history museum in Thunder Bay, Canada

The Thunder Bay Historical Museum occupies the former Fort William police station and court house, a three-storey building designed by architect Robert Mason and erected in 1910. Its Classical Revival facade features two large Corinthian columns and pilasters. Galleries on the first, second and third floors hold regional artifacts, while a visible storage gallery in front of the annex displays vehicles and other large items.

The museum was founded in 1908 and moved to its current location in 1994, occupying the former Fort William police station and courthouse. The building itself dates from an important period when two separate cities later merged into Thunder Bay.

The museum's name comes from the Thunder Bay Historical Society, founded on 2 October 1908 on the initiative of Barlow Cumberland, then president of the Ontario Historical Society. Peter McKellar led the society from 1908 to 1923. Today the society publishes the annual peer-reviewed journal Papers & Records and books on local and regional history.

The museum occupies the former Fort William police station and courthouse near Thunder Bay City Hall. Since 1994 the interior has been fully renovated, with an overhauled HVAC system and a wheelchair ramp added; an annex behind the building was enlarged into collection storage, and a visible storage gallery now stands in front of it displaying vehicles and other large objects.

The museum publishes an annual peer-reviewed journal called Papers & Records that shares regional research with a wider audience. This publication effort makes it possible for researchers and curious visitors to explore local history beyond what the galleries alone can show.