A. K. M. Fazlul Haque (born 25 January 1958) is a Bangladeshi surgeon. He was the founder of the Department of Colorectal Surgery in Bangabandhu Sheikh Mujib Medical University (BSMMU) in Dhaka. Haque passed Secondary School Certificate (SSC) from Jessore board at 1972. In 1974, he completed Higher Secondary School Certificate (HSC). In 1982, he completed his M.B.B.S degree from Dhaka Medical College. He was awarded Fellowship (FCPS) from Bangladesh College of Physician and Surgeons in January 1989. Haque worked in government health service in Bangladesh starting from April 1982 until 2009. He practices absolutely restricted Colorectal Surgery since 1997. In last 17 years he has consulted nearly 6,50,000 (six lac fifty thousand) new patients and operated 3,35,000 (Three lac thirty five thousand) patients in private and government’s hospital having Piles, Fistula, Anal Fissure, Colon and Rectal Cancer, Polyp, Rectal Prolapse & Diverticulitis. He does short or full colonoscopy himself routinely for most of the patient. He has attended many conferences at home and abroad. He has conducted few international workshops. He was a visiting faculty in Tribhubon University, Nepal. He performed successfully the highest number of operation worldwide for piles, fistula, anal fissure, colon cancer, rectum cancer.