The MIT Museum, founded in 1971, is part of the Massachusetts Institute of Technology in Cambridge, Massachusetts. It hosts collections of holography, technology-related artworks, artificial intelligence, architecture, robotics, maritime history, and the history of MIT. Its holography collection of 1800 pieces is the largest in the world, though only a few selections from it are usually exhibited. As of 2023^[update], works by the kinetic artist Arthur Ganson were the largest long-running displays; in 2024 they were replaced by a newer art installation, but some of Ganson's works were reinstalled elsewhere in the museum. There is a regular program of temporary special exhibitions, often on the intersection of art and technology.

The overall purpose of the MIT Museum is to "turn MIT inside out" by making MIT's work more visible and accessible to the outside world. In addition to serving the MIT community, the museum offers numerous outreach programs to school-age children and adults in the public at large. The widely attended annual Cambridge Science Festival was originated by and continues to be coordinated by the museum.

In October 2022, the MIT Museum reopened in new, expanded facilities in the Kendall Square innovation district.

The museum was founded in 1971 by Warren Seamans, originally as part of an exhibit project of the Office of the President and the Department of Humanities for the inauguration of President Jerome Wiesner. The committee's work was named the MIT Historical Collections in December 1971, and served as the predecessor to the museum. Its purpose was to collect and preserve historical artifacts and documents scattered throughout MIT. The organization was renamed the MIT Museum in 1980, and began developing exhibits and educational programs for the MIT community as well as society at large.

Since 2005 the official mission of the MIT Museum has been "To engage the wider community with MIT’s science, technology and other areas of scholarship in ways that will best serve the nation and the world in the 21st century."

The museum is directed by Michael John Gorman, and operates under MIT's Associate Provost for the Arts, who also oversees the List Visual Arts Center and the MIT Office of the Arts. Gorman also teaches in the MIT School of Humanities, Arts, and Social Sciences (SHASS) in its Program in Science, Technology, and Society (STS).

Former director John Durant (2005-2023) continues to teach courses on the development of science exhibits and communication among scientists, engineers, and the general public.

The museum was accredited in 1984 by the organization now called the American Alliance of Museums (AAM), and reaccredited in 2002 and 2013. The MIT Museum also belongs to the Association of Science-Technology Centers (ASTC), Museum Computer Network, New England Museum Association, International Confederation of Architectural Museums, and the International Council of Maritime Museums.