Mahbubul Alam (Bengali: মাহ্‌বুব-উল আলম, pronounced [maɦbubul alɔm]; 1 May 1898 – 7 August 1981) was a Bangladeshi writer, journalist, historian, soldier, and civil servant.

Mahbub's most well-known work, translated into English by Lila Roy as The Confession of a Believer is a novel—as the title suggests, on autobiographical elements—that portrays the central character as having gone through the continuous biting of the conscience mainly on moral grounds.

After his death, four volumes of humorous short stories were published, which are: Pradhan Otithi and Taza Singhi Macher Jhol (The chief guest and the gravy of the freshly cooked catfish), It is the book with the publication of which in 1935 Mahbub arrived on the literary scene of the undivided Bengal.

Recollecting his days of war in Mesopotamia, Mahbub brings to life in bold humorous strokes his encounters with people in the kind of his Scottish boss, a lieutenant general, who presented him with a Robert Burns volume for his honesty, his co-mates and their pranks, cooks and guards of the camp, his sickness, the malaria epidemic in the quarters, and Iraqi date-tree gardens and their women.

Another book along this line, titled Bangaleer Samorik Oitijhya (The Military Tradition of the Bengalis), published recently contains unpublished writings of Mahbub as well as old entries from Paltan Jiboner Smriti.

On retirement, Mahbub took interest in social welfare and published a weekly newspaper, titled Zamana (meaning the current days), which he later on converted into a daily.