The Emirate of Nejd or Imamate of Nejd was the Second Saudi State, existing between 1824 and 1891 in Nejd, the regions of Riyadh and Ha'il of what is now Saudi Arabia. Saudi rule was restored to central and eastern Arabia after the Emirate of Diriyah, the First Saudi State, having previously been brought down by the Ottoman Empire's Egypt Eyalet in the Ottoman–Wahhabi War (1811–1818).

Muhammad bin Abdullah Al Rashid was one of the Emirs of Jabal Shammar and is known for his defeat of the Saudi State in the battle of Mulayda which ceased to exist for a second time in 1891. His reign lasted from 1869 to 1897, and he was the most influential ruler of the Emirate of Jabal Shammar for which he is called Muhammad the Great.