The Bangladesh Communist Party (Leninist) was a communist party in Bangladesh. BCP(L) was founded in Calcutta in the fall of 1971, by several small communist splinter factions. The core of founders of BCP(L) consisted of Kazi Zafar Ahmed, Rashed Khan Menon and Haider Akbar Khan Rono from the Communist Samanay Kendra, Amal Sen and Nazrul Islam from Communist Sanghati Kendra and Nasim Ali from the Hatiar group. Communist Samanay Kendra originated from the students movement and Communist Sanghati Kendra was a splinter group of East Pakistan Communist Party (Marxist-Leninist) that had revolted against the annihilation line.

This article relies largely or entirely on a single source. (February 2022)

Amal Sen was elected secretary of the party. BCP(L) projected itself as neither loyal to Moscow nor Beijing. BCP(L) had a close link with the Communist Party of India (Marxist) from its foundation. In 1973 is formed part of the opposition alliance formed by National Awami Party (Bashani).

The party contested the 1973 parliamentary election.^[1] In 1974 BCP(L) launched the United People's Party as their open frontal party. In 1979 Kazi Jaffar Ahmad left the party and joined Ziaur Rahman. In 1980, on the 102th birth anniversary of Iosif Stalin, BCP(L) merged with some other groups and formed the Workers Party of Bangladesh.