He was 55, family sources said.
Haque was suffering from different diseases including kidney, heart, liver and diabetes.
He left behind his wife, two sons, a daughter and a host of relatives and well-wishers to mourn his death.
His first namaz-e-janaza was held at Shanir Akhra while the second one at his home at Sherpur.
Later, he was buried at his family graveyard.
Dhaka Sub-Editors Council (DSEC) president Muktadir Anik and general secretary Jawhar Iqbal Khan expressed profound shock and sorrow at the death of Mahmudul Haque.
In a condolence message, they prayed for eternal peace of the departed soul and conveyed deep sympathy to the bereaved family, reports UNB.