Gaziosmanpaşa is a developing working class municipality and district of Istanbul, Turkey, on its European side. Its area is 12 km2, and its population is 495,998 (2022). With a population of almost 500,000, it is one of the most populous districts. Esenler and Bayrampaşa are west, Sultangazi is north and Eyüp is south and east of the district.

Semih Erden is a Turkish professional basketball player for Bursaspor İnfo Yatırım of the Basketbol Süper Ligi (BSL). Standing at 6 ft 11 in (2.11 m), he plays at the center position.