Sinanüddin Yusuf Pasha or in short Sinan Pasha (Croatian: Sinan-paša), (died 21 December 1553) was a Kapudan Pasha (Fleet Admiral) of the Ottoman Navy for nearly four years between 1550 and the end of 1553, during the reign of Suleiman the Magnificent. He was of Croatian descent, the predecessor of Piyale Pasha in this rank and the brother of Grand Vizier Damat Rüstem Pasha, who in turn was married to Sultana Mihrimah, a daughter of Suleiman the Magnificent.