Koca Mustafa Pasha (Ottoman Turkish: قوجه مصطفی پاشا; died 1512) was an Ottoman statesman.
[2] He started his career as kapıcıbaşı, that is "chief doorkeeper" of the Topkapi Palace: in this office he acted also as Master of Ceremonies at receptions of foreign ambassadors.
He married a daughter of Sultan Bayezid II, Kamerşah Sultan, in 1491 and by her he had a daughter, Hundi Hanımsultan, and a son, Sultanzade Osman Bey.
Appointed Grand Vizier near the end of the reign of Bayezid II, he was executed in 1512.
[3] In Istanbul he let convert into mosques two ancient Byzantine churches, which were both named after him: respectively Koca Mustafa Pasha and Atik Mustafa Pasha Mosque.