The Dolmabahçe Mosque is located on the Bosphorus in the southern part of Dolmabahce Palace. Construction of the mosque began at the behest of Sultan Abdülmecid's mother, Bezmialem Valide Sultan, but when she died, Sultan Abdülmecid took over. It was completed in 1855, and the architect was Karabet Balyan. It is one of the highly decorated Baroque-style mosques. Being part of the palace complex, the mosque contains a front section in which the sovereign and state officials could worship and a two-storey section for the sovereign suitable for the public procession of the Sultan to the mosque on Fridays. The circular arrangement of the windows, which resembles a peacock's tail, is an unusual sight relatively unknown among the architects of mosques.

The two minarets both have a gallery. The inner door is decorated in a mixture of the Baroque and Empire styles. A valuable chandelier hangs from the alcove. The niche (mihrap) and pulpit (minber) of the mosque are made of porphyry marble.