The Communist Party USA (CPUSA) is a communist political party in the United States.
Political parties with similar names include: American Communist Party (2024) (ACP), a communist organization Communist Labor Party of America (CLPA), the smaller of two organizations which formed in 1919 and merged in 1921 into CPUSA Communist Party of America (CPA), the larger of two organizations which formed in 1919 and merged in 1921 into CPUSA Communist Party USA (Marxist–Leninist) (CPUSA(ML)), a defunct Maoist organization Communist Party USA (Opposition) (CPO), a defunct Bukharinist organization Communist Party USA (Provisional) (CPUSA(P)), a clandestine communist organization Revolutionary Communist Party, USA (RCP), a Marxist–Leninist–Maoist organization