The Rubʿ al-Khālī (Empty Quarter)
The great sand sea of southern Arabia — the largest continuous desert of sand on earth.
- Type
- Desert region
- Also called
- Sands of Yabrīn; al-Aḥqāf in the classical sources
- Note
- 'Empty Quarter' is a recent name
- Borders
- Saudi Arabia, Oman, UAE, Yemen
Overview
The Rubʿ al-Khālī fills the south of the Peninsula, touching Saudi Arabia, Oman, the UAE and Yemen. It is the largest unbroken body of sand in the world.
The name
'The Empty Quarter' is a relatively recent name. The classical geographers did not use it: al-Hamdānī and others describe the same country as the sands of Yabrīn, and place al-Aḥqāf — 'the sand dunes' — in this region.
In genealogy
It is not empty of people. Its northern and eastern margins are recorded as the range of Āl Murrah, and the tribes of Najrān and Ḥaḍramawt border it on the south. Crossing it was the achievement that defined a guide's reputation, and its wells and routes were tribal knowledge in the strict sense — held, taught and defended.
Frequently asked questions
Did the classical geographers call it the Empty Quarter?
No — that name is relatively recent. They described the same country as the sands of Yabrīn, and placed al-Aḥqāf, 'the dunes', in this region.
Sources
- الحسن الهمداني، صفة جزيرة العرب، 334هـ — في ذكر الرمال
- ياقوت الحموي، معجم البلدان، 626هـ — مادة: يبرين والأحقاف
Last reviewed: 2026-07-27