Mustafa Denizli (born 10 November 1949) is a former Turkish football player and the current head coach of Iranian football clubTractor. He has managed many notable Turkish football clubs, including "Istanbul Big Three" (Fenerbahçe, Galatasaray and Beşiktaş) and has won the Süper Lig title three times. He is the only manager in history to win the Süper Lig with three clubs.
Denizli was appointed manager of FK Khazar Lankaran on 3 December 2013, with a one-and-a-half year deal. On 16 May 2014, Denizli terminated his contract with Khazar.
He also has worked outside Turkey with Alemannia Aachen in Germany, Pas and Persepolis in Iran and Khazar Lankaran in Azerbaijan. He managed the Turkish national team for four years and reached the quarter-finals of Euro 2000. On 23 December 2011, he returned to Persepolis but resigned at the end of the season. He spent 17 years with his hometown club Altay in İzmir, gaining a reputation as one of the best players in the position of attacking left forward in the league's history. On 9 October 2008 he signed a 1-year contract with Beşiktaş. On 30 May the club claimed its 13th Süper Lig title under his guidance. Denizli is the only one in Turkey who have won the national league with the ""three biggest"" football clubs; Beşiktaş, Fenerbahçe and Galatasaray as a manager. With 2008–09 league title, Denizli also clings to the achievement of being "the one and only Turkish coach Beşiktaş earned the league title with". 2 June 2010 According to a number of reports from Turkey, experienced gaffer Denizli has resigned as head coach of Süper Lig titans Beşiktaş due to medical reasons.