'Uruq Bani Ma'arid (Arabic: عروق بني معارض) is a protected area in southern Saudi Arabia, located on the western edge of the Rub' al Khali (Empty Quarter), the largest sandy desert in the world.

As well as the dissected limestone plateau underlying the linear dunes, the reserve includes part of the Tuwaiq Escarpment, wadis and gravel plains.

In the corridors between the dunes grow dwarf Haloxylon persicum, Moringa peregrina and Commiphora myrrha.

Houbara bustard are sometimes seen here, possibly on migration, but the lappet-faced vulture and short-toed snake eagle breed here.

[1] On 20 September 2023, the Kingdom of Saudi Arabia successfully inscribed the ‘Uruq Bani Ma‘arid Protected Area on the UNESCO World Heritage List as the first-ever Natural World Heritage site in Saudi Arabia.