The Chinese Exclusion Repeal Act of 1943, also known as the Magnuson Act, was an immigration law proposed by US Representative (later Senator) Warren G. Magnuson of Washington and signed into law on December 17, 1943, in the United States.

However, in many states, Chinese Americans (mostly immigrants but sometimes US citizens) were denied property-ownership rights either by law or de facto until the Magnuson Act itself was fully repealed in 1965.

The Magnuson Act was passed on December 17, 1943, two years after the Republic of China became an official allied nation of the United States in World War II.

Although considered a positive development by many, it was still restrictive, limiting Chinese immigrants to an annual quota of 105 new entry visas.

The quota was determined according to the National Origins Formula prescribed by the Immigration Act of 1924, which set immigration quotas on countries subject to the law as a fraction of 150,000 in proportion to the number of inhabitants of that nationality residing in the United States as of the 1920 census, which for China was determined to be 0.07%, or 105 per annum.