Ahsanullah may refer to:
Ahsanullah (cricketer) (born 1997), Afghan cricketer Ahsanullah (educator) (1873–1965), Indian Islamic theologist and social reformer Ahsanullah Master (1950–2004) Bangladeshi politician Ahsanullah Montu (1962–2018), Bangladeshi footballer and coach Ahsanullah Pirzai, Guantanamo Bay detainee Khwaja Ahsanullah (1846–1901), third Nawab of Dhaka Shamsunnahar Khwaja Ahsanullah (1934–2025), Bangladeshi politician Ahsanullah University of Science and Technology, a private university in Dhaka, Bangladesh Ahsanullah Engineering College, former name of Bangladesh University of Engineering and Technology, Dhaka