|Date of birth||16 April 1949|
|Place of birth||Istanbul, Turkey|
|Height||1.75 m (5 ft 9 in)|
|1996-2000||Galatasaray (Assistant coach)|
|2005-06||Galatasaray (Assistant coach)|
* Senior club appearances and goals counted for the domestic league only.
Ünder played his entire career for Galatasaray. He played eight seasons for his club. His team won the Turkish league championship for three times, and won the Turkish Cup twice during his playing career. He finished his career in 1978 with a farewell match against city rivals Fenerbahçe.
Ünder also played for the Turkish national football team for nine games between 1973-1974.
Bülent Ünder began his coaching career in the 1991/92 season at Çengelköyspor. After a season Ünder joined the second division side Denizlispor. However, his contract there was terminated after a short time. Three years later, Ünder returned Galatasaray as the assistant coach of Fatih Terim. Alongside Terim, Bülent Ünder helped the team to win the league four times in a row, also winning the Turkish Cup twice and becoming the UEFA Cup winners in 2000.
After Terim left Galatasaray in the summer of 2000 for Fiorentina, Bülent Ünder also left Galatasaray and was appointed as the manager for Samsunspor in the 2000-01 season. In this season he managed to defeat his former team Galatasaray in their own home stadium, which was something very rare at that time.
Ünder returned Galatasaray in the 2005-06 season as a game analyst for Eric Gerets. On 25 March 2011 he was appointed as the manager for Galatasaray until the end of season after the contract of Gheorghe Hagi was mutually terminated by the team.
- Bülent Ünder – FIFA competition record
- Bülent Ünder - Player profile at TFF
- Bülent Ünder - Manager profile at TFF
- Bülent Ünder career stats in Turkey at mackolik.com