Edge cities in Turkey

Sarıyer () is a municipality and district of Istanbul Province, Turkey. Its area is 177 km2 and its population is 350,454 (2022). It is on the northeastern part of Istanbul's European side. Sarıyer also administers the Black Sea coast to the west of the mouth of the Bosphorus, including the neighbourhood of Kilyos. It borders Eyüpsultan to the northwest, Beşiktaş to the south and Kağıthane to the west. The mayor is Mustafa Oktay Aksu of the Republican People's Party (CHP).