Hassan Al-Mamun

On 9 March 2022, Mamun was named Javier Fernández Cabrera's assistant coach in the Bangladesh national team.

Mamun started his coaching career as the assistant coach of Chittagong Abahani. He was also appointed as Sheikh Jamal DC's assistant coach in 2021, under Mosharraf Hossain Badal.

In 2008, Mamun was under controversy after stating in an interview that according to him the government does not care about football and the club officials should be imprisoned for destroying the country's football. His statements lead to 8 professional league teams of Dhaka sign an agreement to not sign Mamun for the upcoming B.League season. However, Mamun soon gave another interview in which he said that the journalists misquoted him. He said that most players alongside him had not been paid for the last three years.

Mamun spent most of his career captaining Muktijoddha Sangsad KS, his time at the club lasted for almost thirteen years, during which he won the 2003 National Football Championship, the Bangladesh Federation Cup in both 2001 and 2003 and the Dhaka League in 2000.

Mamun made his debut for the Bangladesh national football team during their 1995 4 nation Tiger Trophy triumph in Myanmar. This was the country's first ever trophy and Mamun was one of the six new faces integrated into the team by new coach Otto Pfister. The following few year saw Mamun establish a regular position in the national team, winning gold in the 1999 South Asian Games along the way. Mamun was also a part of team which won the 2003 South Asian Football Federation Gold Cup. He played all six matches during the tournament and helped Bangladesh win their first SAFF Championship. Anwar Parvez and Mamun's full-back partnership is seen as one of the main reasons Bangladesh won the trophy, as the team played with two strikers and no wingers during the majority of the tournament. However during the final of the tournament with Rajani Kanta Barman suspended Mamun played as a centre back. Firoz Mahmud played as the full-back along with Anwar Parvez.

Mamun started his career with Team BJMC in 1992, when he was in tenth grade. Then he went on to join Fakirerpool Young Men's Club, who were known for developing talented young players during the early 90s, but Mamun established himself as one of the best defenders in the country, during his time at Abahani Limited Dhaka. He won numerous trophies with Abahani before joining Muktijoddha Sangsad KS in 1996.

Hassan Al-Mamun (Bengali: হাসান আল-মামুন; born 16 December 1978) is a Bangladeshi retired professional footballer who played as a defender. He was mainly deployed as a full back who could play on both sides of the field.