Simon Commission, group appointed in November 1927 by the British Conservative government under Stanley Baldwin to report on the working of the Indian constitution established by the Government of India Act of 1919. The commission consisted of seven members—four Conservatives, two Labourites, and one Liberal—under the joint chairmanship of the distinguished Liberal lawyer, Sir John Simon, and Clement Attlee, the future prime minister. Its composition met with a storm of criticism in India because Indians were excluded. The commission was boycotted by the Indian National Congress and most other Indian political parties. It, nevertheless, published a two-volume report, mainly the work of Simon.
Regarded as a classic state document, the report proposed provincial autonomy in India but rejected parliamentary responsibility at the centre. It accepted the idea of federalism and sought to retain direct contact between the British crown and the Indian states. Before its publication its conclusions had been outdated by the declaration of October 1929, which stated that dominion status was to be the goal of Indian constitutional development.