King Khalid Royal Reserve (Arabic: محمية الملك خالد الملكية), formerly as al-Thumamah Wildlife Park (Arabic: متنزه الثمامة البري) and better known as al-Thumamah Park, is a nature reserve and a popular outdoor tourist attraction in the al-Thumamah region of northeastern Riyadh, Saudi Arabia.

[5] Prior to its nationalization by the Saudi government in 1983, the park was a private farm owned by the late King Khalid.

Following his death in 1982, the newly crowned monarch of Saudi Arabia, King Fahd issued a royal decree for nationalization of the property.

The then governor of Riyadh Prince Salman tasked the High Commission for the Development of Arriyadh to transform the farm into a public park.

[6] In October 2019, King Salman issued a royal decree which officially declared the area as a natural reserve and was renamed as the King Khalid Royal Reserve.