Beşiktaş is a district and municipality of Istanbul, Turkey, located on the European shore of the Bosphorus strait. It is bordered on the north by Sarıyer and Şişli, on the west by Kağıthane and Şişli, on the south by Beyoğlu, and on the east by the Bosphorus. Directly across the Bosphorus is the district of Üsküdar.
The district includes a number of important sites along the European shore of the Bosphorus, from Dolmabahçe Palace in the south to the Bebek area in the north. It is also home to many inland neighborhoods such as Levent and Etiler. Some of its other well-known neighborhoods include Yıldız, Kuruçeşme, Ortaköy, and Arnavutköy.
Beşiktaş' historic commercial centre is the Beşiktaş quarter and Çarşı, which adjoins the small Abbasağa Park. Running in the north-south direction, Barbaros Boulevard is a major feeder road for the inner-city motorway O-1 and the Bosphorus Bridge, terminating at the important public transport hub of Zincirlikuyu. Büyükdere Avenue also runs through the district.