The Chinese Exclusion Act was a United States federal law signed by President Chester A. Arthur on May 6, 1882, prohibiting all immigration of Chinese laborers. Building on the 1875 Page Act, which banned Chinese women from immigrating to the United States, the Chinese Exclusion Act was the first law implemented to prevent all members of a specific ethnic or national group from immigrating.

The act followed the Angell Treaty of 1880, a set of revisions to the U.S.–China Burlingame Treaty of 1868 that allowed the U.S. to suspend Chinese immigration. The act was initially intended to last for 10 years, but was renewed in 1892 with the Geary Act and made permanent in 1902. It was repealed by the Magnuson Act on December 17, 1943, which allowed 105 Chinese to enter per year. Chinese immigration later increased with the passage of the Immigration and Nationality Act of 1952, which abolished direct racial barriers, and later by Immigration and Nationality Act of 1965, which abolished the National Origins Formula.