Abdülhak Sinasi Hisar (March 14, 1887 in Istanbul – May 3, 1963 in Istanbul) was a Turkish writer.
He spent his childhood in Rumeli Hisari and studied at the Galatasaray High School and later political sciences in Paris.
Back to Ottoman Empire, he worked for a French company and later for Stines Mining Company and Regie des Tabacs.