The MIT School of Architecture and Planning (MIT SAP, stylized as SA+P) is one of the five schools of the Massachusetts Institute of Technology, located in Cambridge, Massachusetts. Founded in 1865 by William Robert Ware, the school offered the first formal architectural curriculum in the United States, and the first architecture program in the world operating within the establishment of a university. MIT SAP is considered a global academic leader in the design fields and one of the most prestigious schools in the world. MIT's department of architecture has consistently ranked among the top architecture/built environment schools in the world, and from 2015 to 2018 was ranked highest in the world in QS World University Rankings. In 2019, it was ranked second to The Bartlett but regained the number one position in the 2020 rankings.

In the 20th century, the school came to be known as a leader in introducing modernism to America. MIT has a history of commissioning progressive buildings, many of which were designed by faculty or former students associated with the school. In recent years, the campus of the Massachusetts Institute of Technology has been expanded with a mix of modernist and post-modernist buildings.

Since 2015, the Dean of Architecture and Planning is Hashim Sarkis.