Ajoy Mukherjee (1901–1986) was the fourth chief minister of West Bengal, India. He hailed from Tamluk, Purba Medinipur district, West Bengal.
Born in 1901, he was one of the leaders of Tamralipta Jatiya Sarkar (Tamrlipta National Government), which came into effect on 17 December 1942 during the Quit India Movement, a programme of civil disobedience launched in India in 1942. He was greatly influenced by Swami Vivekananda. Earlier a member of the Indian National Congress, he later became a leader in the Bangla Congress, which co-governed with the Communist Party of India (Marxist) in two United Front governments in the 1960s and 1970s. He held the chief ministerial position in both these governments, from March to November 1967, and again from February 1969 to March 1970.
He was awarded the Padma Vibhushan award in 1977 from Government of India.
His brother Biswanath Mukherjee was the husband of Geeta Mukherjee, a communist MP. Ajoy’s niece Kalyani (daughter of another brother) was married to Mohan Kumaramangalam and was the mother of Rangarajan Kumaramangalam and Lalitha Kumaramangalam.
Mukherjee died on May 27, 1986 in Calcutta.