Mainul Hasan (born 1 December 1968)[3] is a Bangladeshi police officer.

[5] Prior to join here, he was Deputy Inspector General of Criminal Investigation Department of police.

[3] Hasan served at SSF as Assistant Director, Additional Superintendent of Police Narsingdi, ADC (Traffic DMP).

Later he served as Additional DIG at Police Bureau of Investigation (PBI) Headquarters, Dhaka.

After being promoted to the rank of DIG, he served at CID Headquarters, Dhaka.