The Bangladesh Cricket Board says chief executive officer Manzur Ahmed has died of a heart attack while asleep in his Dhaka apartment. He was 55.
Ahmed's body was recovered from his room on Monday, the board said, adding Ahmed died overnight.
He took over as chief of the BCB in 2010.
His funeral prayers were held in a mosque in Dhaka, where several hundred cricket officials and fans gathered.
Bangladesh Junior Sports Minister Ahad Ali Sarkar said "His sudden death is a huge loss to the country's sports arena."
International Cricket Council chief executive Haroon Logart said Ahmed's death has shocked everyone in the ICC.
