The Zumurrud Khatun Mosque and Mausoleum (Arabic: جامع زمرد خاتون, romanized: Masjid al-Haza'ir), also known as the Tomb of Sitta Zubayda, is a historic mosque and shrine located in Baghdad, Iraq. It dates back to the Abbasid era. It is located in Sheikh Ma'ruf Cemetery in the Karkh side of Baghdad, and the site was built at the patronage of Zumurrud Khatun and her son. Zumurrud Khatun was the wife of the 33rd Abbasid caliph, al-Mustadi (r. 1170–1180) and mother of Caliph al-Nasir (r. 1180–1225). She collected the waqf money from madrasas and built her mausoleum before her death, which is located in Karkh.

The building is covered by the distinct nine layered muqarnas dome capped by a small cupola. The dome of this building is considered to be the earliest surviving example of its type in Baghdad. The building has robust construction made of bricks and plaster. There is also an attached library, and an adjoined Shafi'i madrasa. Due to the mosque being dominated by Hanafi maddhab, the extension to the north for Shafi'i maddhab was added, which is called Shafi'i Mosque.

The tomb is one of two historic mausoleums in Karkh. The other is the Sheikh Maruf Mosque.