American Communist Party
American Communist Party may refer to:
- Communist Party USA (CPUSA), a major communist party in the United States
- Communist Party USA (Marxist–Leninist) (CPUSA-ML), a defunct American Maoist party based in Los Angeles
- Communist Party of the USA (Opposition) (CPO), a defunct American Bukharinist party led by Jay Lovestone
- Communist Party USA (Provisional) (CPUSA(P)), a clandestine communist party in the United States alleged to be affiliated with the National Labor Federation
- American Communist Party (2024) (ACP), a communist party in the United States and Canada that splintered from the CPUSA in 2024