Anti-Imperialist League may refer to:

• All-America Anti-Imperialist League (1925-1933), mass organization of the Communist Party USA
• American Anti-Imperialist League (1898-1921), political organization established in response to the Spanish–American War
• Anti-Imperialist League, a name used by the Communist Party (India) in Punjab during the early 1930s - see Naujawan Bharat Sabha
• A misnomer for the League Against Imperialism

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