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