Communist Party of Bangladesh

The Communist Party of Bangladesh (Bengali: বাংলাদেশের কমিউনিস্ট পার্টি, abbreviated: CPB) is the dominant communistpolitical party in Bangladesh. It emerged from the East Pakistani wing of the Communist Party of Pakistan in 1968.

Following the Partition of India, the Communist Party of Pakistan (CPP) split from the Communist Party of India (CPI), and its East Pakistani wing was formed. However, the geopolitical separation and socio-economic differences between East and West Pakistan led the East Pakistani wing of the CPP to form a separate Communist Party of East Pakistan (CPEP) in 1968. The party actively participated in the 1969 mass uprising and 1971 non-cooperation movement and organised a guerrilla force with the Bangladesh Students' Union and the National Awami Party (Muzaffar) during the Liberation War of Bangladesh. The party joined the Bangladesh Krishak Sramik Awami League (BaKSAL) and was temporarily dissolved in 1975. It played an active role in the 1990 mass uprising, the 2013 Shahbag protests and the 2024 July mass uprising.

As a Marxist–Leninist organisation, the party is structured according to the principle of democratic centralism and has declared its objective as the "revolutionary democratic transformation of society and state". Following the dissolution of the Soviet Union, the party adopted a more progressive and democratic socialist platform. Since 2018, it has been a leading member of the Left Democratic Alliance, a coalition of left‑wing parties. Kazi Sajjad Zahir Chandan has served as the party's president since 2025.