Nihar Mukherjee (1920–2010) was an Indian politician who served as General Secretary of the Socialist Unity Centre of India (Communist) (SUCI (C)).

[1] He was a founding member of the party in 1948 and became the General Secretary after the death of Shibdas Ghosh in 1976.

[3] During Mukherjee's early political career, he was a leader of the Anushilan Samiti, where he came in close contact of Shibdas Ghosh.

[5] Mukherjee played a decisive role in developing united left democratic movements in West Bengal.

[6] The party held a massive memorial meeting on 3 March 2010 to mourn the death of Nihar Mukherjee in the Netaji Indoor Stadium, Kolkata.