The Commonwealth of the Philippines was an unincorporated territory and commonwealth of the United States that existed from 1935 to 1946. It was established following the Tydings–McDuffie Act to replace the Insular Government of the Philippine Islands and was designed as a transitional administration in preparation for full Philippine independence. Its foreign affairs remained managed by the United States.

The Tydings–McDuffie Act, officially the Philippine Independence Act, is an Act of Congress that established the process for the Philippines, then an American territory, to become an independent country after a ten-year transition period. Under the act, the 1935 Constitution of the Philippines was written and the Commonwealth of the Philippines was established, with the first directly elected President of the Philippines. It also established limitations on Filipino immigration to the United States.