Sardar Jainuddin (1 March 1918 – 22 December 1986) was a Bangladeshi novelist.

[4][5] Sardar Jayenuddin was born in 1918 in the village of Kamarhat, part of the Najirganj Union in Sujanagar Upazila, which is located in the Pabna District of what is now Bangladesh.

He was born into the esteemed 'Sardar family' in a region that was under the British Empire's colonial administration as part of the Bengal Presidency during the year of his birth.

In 1939, Sardar Jayenuddin completed his Matriculation examination at Kholilpur High School.

Subsequently, he pursued further studies and achieved an equivalent of a higher secondary education at Govt.