Sayid Abdullah (1873–1933) was the last Khan of Khiva of the Khongirad (Qungrat) dynasty, from 1 October 1918 until 1 February 1920. His father was Muhammad Rahim Khan II.

Sayid Abdullah had no real power, because the Khanate was ruled by Junaid Khan, a Turkmen general, at that time. In 1920, the Bolsheviks had defeated Junaid Khan, overthrown the Khanate of Khiva and deposed Sayid Abdullah. He was sent to Ukraine, where he died 13 years later at a hospital. His deposition in 1920 represents the end of the rule of Genghis Khan's direct descendants anywhere in the world.