Aşk-ı Memnu (; , ) is a Turkish romance novel by Halit Ziya Uşaklıgil, who was part of the Edebiyat-ı Cedide ("New Literature") movement of the late Ottoman Empire. The novel was serialized in 1899 and 1900 in Servet-i Fünun, a leading Turkish literary magazine of the time.

Adaptations Aşk-ı Memnu was adapted by Halit Refiğ into a TV series in 1975, considered to be the first miniseries on Turkish television. Another TV series adaptation named Aşk-ı Memnu aired from 2008 to 2010. It takes place in modern-day Istanbul instead of the novel's late 19th-century setting. Telemundo produced a Spanish adaptation of the serial, Pasión prohibida, which was set in Miami.

The novel was made into a three-act play by Tarık Günersel, who also wrote a libretto for the Turkish composer Selman Ada, leading to an opera.

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