Achintya Kumar Sengupta (born 19 September 1903 – 29 January 1976) was an Indian Bengali-language poet, story writer, novelist, biographer and editor.

At the age of 13, after his father's death, Sengupta moved to Calcutta, where he completed his schooling.

Subsequently, he obtained a degree in Law and entered the judicial service in 1928 as a Civil Judge (Junior Division) and Assistant Magistrate Second Class.

He contributed to almost all genres of Bengali literature, but is best remembered for his novels and short stories.

Sengupta was closely associated with the famous magazine Kallol, and was its editor for some time.