Üsküdar (Turkish pronunciation: [ysˈcydaɾ]), traditionally known in Italian and English as Scutari (Scutàrion, Σκουτάριον in Greek), is a large and densely populated district and municipality of Istanbul, Turkey, on the Anatolian shore of the Bosphorus. It is bordered on the north by Beykoz, on the east by Ümraniye, on the southeast by Ataşehir, on the south by Kadıköy, and on the west by the Bosphorus, with the areas of Beşiktaş, Beyoğlu, and Eminönü on the opposite shore. It is home to about half a million people. Üsküdar is also the usual name for the historic center of the municipality.
Üsküdar was originally called "Skoutarion" (Byzantine Greek Σκουτάριον) during the Byzantine Empire. This word may have been used to describe the scutum shields that guards used that were made of leather. This is believed because the word scutari means "raw tanned leather." Others who visited the area called it Eksüdar or Escutaire.