DuPont Museum, Historical museum in Washington, United States.

The DuPont Museum is a history museum in the DuPont Village Historic District of DuPont, Washington. It occupies the former DuPont City Hall building and holds exhibits and artifacts on the city's past, from the Hudson's Bay Company's Fort Nisqually to the DuPont dynamite plant company town.

The museum opened in 1977 in the former DuPont City Hall, inside the DuPont Village Historic District. In 1982 the non-profit DuPont Historical Society was formed to operate it. Its exhibits cover the city's past as the site of the Hudson's Bay Company's Fort Nisqually and later as a company town for the DuPont dynamite plant.

The museum organizes the annual Hudson's Bay Day, a celebration recalling the role of the Hudson's Bay Company and Fort Nisqually in local history. Its exhibits cover both the fort era and the years when DuPont was a company town for the dynamite plant.

The museum occupies the former DuPont City Hall building inside the DuPont Village Historic District, so it can be visited on foot along with the surrounding historic village. It has been run since 1982 by the DuPont Historical Society, a non-profit foundation. The annual Hudson's Bay Day celebration is the occasion when the museum's local history theme is most visible.

The museum has occupied the former DuPont City Hall since opening in 1977, and since 1982 the non-profit DuPont Historical Society has run it. Each year it organizes the Hudson's Bay Day celebration, recalling the Hudson's Bay Company and Fort Nisqually in local history.