Nihar Mukherjee (1920–2010) was an Indian politician who served as General Secretary of the Socialist Unity Centre of India (Communist) (SUCI (C)). He was a founding member of the party in 1948 and became the General Secretary after the death of Shibdas Ghosh in 1976. He was also the Editor-in-Chief of the Proletarian Era, the official newspaper of the organization.