Şişli is a municipality and district located in the Istanbul Province of Turkey. Situated on the European side of the city, it covers an area of 10 km2 and had a recorded population of 276,528 in 2022.
The district is bordered by Beşiktaş to the east, Sarıyer to the north, Eyüp and Kağıthane to the west, and Beyoğlu to the south. Additionally, Şişli serves as the name for a specific area within the district centered on the Şişli Mosque.