The Cağaloğlu Hamam is a historic hamam (Turkish bathhouse) in Sultanahmet, in the heart of the historic centre of Istanbul, Turkey. Finished in 1741,[1][2] it was one of the last major hamams to be built in Constantinople/Istanbul during the Ottoman period.[3] It was built to raise revenue for the library of Sultan Mahmud I, situated inside the Ayasofya Mosque,[1] and was begun by one of the head architects of that time, Suleyman Ağa, then completed by Abdullah Ağa.[3]
Cağaloğlu is a double hamam with separate sections for men and women.[1] The layout follows the long-established traditional form for hamams, though the architectural details and decoration reflect the later Ottoman Baroque style of the 18th century.[2]