Anti-Chinese sentiment in the United States began in the 19th century, shortly after Chinese immigrants first arrived in North America, and continues into the 21st century. It has taken many forms throughout history, including prejudice, racist immigration restrictions, murder, bullying, massacre, and other acts of violence. Anti-Chinese sentiment and violence in the country first manifested in the 1860s, when Chinese people were employed in the building of the world's first transcontinental railroad. Its origins can be traced partly to competition with white people for jobs, and reports of Americans who had lived and worked in China and wrote relentlessly negative and unsubstantiated reports of locals.

The history of Chinese Americans or the history of ethnic Chinese in the United States includes three major waves of Chinese immigration to the United States, beginning in the 19th century. Chinese immigrants in the 19th century worked in the California Gold Rush of the 1850s and the Central Pacific Railroad in the 1860s. They also worked as laborers in Western mines. They suffered racial discrimination at every level of White society. Many Americans were stirred to anger by the "Yellow Peril" rhetoric. Despite provisions for equal treatment of Chinese immigrants in the 1868 Burlingame Treaty between the U.S. and China, political and labor organizations rallied against "cheap Chinese labor".