Şişli is one of the 39 districts of Istanbul, Turkey. Located on the European side of the city, it is bordered by Beşiktaş to the east, Sarıyer to the north, Eyüp and Kağıthane to the west, and Beyoğlu to the south. In 2009, Şişli had a population of 316,058.
It is also the name of a specific area of Şişli district centered on the Sişli Mosque.