Sharadindu Bandyopadhyay (30 March 1899 – 22 September 1970) was an Indian Bengali-language writer. He was also actively involved with Bengali cinema as well as Bollywood. His most famous creation is the fictional detective Byomkesh Bakshi.

He was born to Tarabhushan and Bijaliprabha Bandyopadhyay at his maternal grandparents’ home in Jaunpur, United Province, India. The Bandyopadhyay family’s residence was at Purnia, Bihar, India, his father Tarabhushan’s workplace but the family originally hailed from Baranagar, North Kolkata , West Bengal, India.[2][3] He passed the matriculation examination in 1915 and took admission in Vidyasagar College, Calcutta. While studying there, he published his first work, Jaubansmriti, a collection of poems, at the age of 20. In 1919, he passed the B.A. examination. He studied law in Patna and then devoted his time to writing.