The Arabian oryx (Oryx leucoryx) is the smallest oryx species.

The oryx is a mammal of the antelope subfamily (Antilopinae) within the bovid family (Bovidae). It includes species found in Africa and the Arabian Peninsula. Today, in addition to the Arabian oryx, the following species occur:

• East African oryx,
• Fringe-eared oryx,
• South African oryx (Gemsbok),
• Scimitar oryx,
• Galla Oryx.