Somnath Lahiri (1901–1984)^[1] was an Indian statesman, writer and a leader of Communist Party of India. He was a member of Constituent Assembly of India from Bengal and later served as a Member Odisha legislative assembly.

Lahiri became attracted to Marxism under the guidance of Bengali revolutionary Bhupendranath Datta in 1930. Initially, he worked in E.B. Railway workers' union and played an important role with Dr. Ronen Sen and Abdul Halim in building the Communist party’s Calcutta Committee.^[2][3]

Lahiri joined the Communist party in 1931, and started working in Rail and Trum workers Union in Kolkata. In 1933, he organized the first labour association of Tata Iron & Steel in Jamshedpur. According to the party's resolution of 1938, he became attached with Muzaffar Ahmed (politician) and Bankim Mukherjee and joined the Left consolidation committee. He also lead the historical Sweeper strike of Kolkata Municipal Corporation in 1944. Lahiri was the sole Communist member in the Constituent Assembly in 1946. He also substantially contributed to the debates regarding drafting of the Constitution of India.^[2][3]

Somnath Lahiri was a well known political intellectual and writer. In 1931 he translated the book The State and Revolution to Bengali. Samyobad (Socialism) is another book of his. He was the editor of Swadhinata, a daily left political magazine. He also wrote many articles in Ganashakti, Aage Cholo, Kalanatar. Kalijuger golpo. The short stories collection of Somnath Lahiri was first published in 1967.^[4]