Hedayetullah Al Mamoon is a retired senior secretary at the Ministry of Finance of Bangladesh and the chairperson of Janata Bank.
[1] In November 2008, Mamun was appointed the additional secretary to the Ministry of Law, Justice and Parliamentary affairs.
[3] Bangladesh Judicial Service Association expressed concern over the appointment of Mamun as he was an admin cadre.
[4] He then became the secretary at the Ministry of Civil Aviation and Tourism in October 2009.
[8] Mamun held a solo lecture on 28 June 2019 on the works of Ranjit Kumar Biswas, writer and former bureaucrat, at the Bangla Academy.