Surname الرباعي (الرباعي 
, Roubai 
) , across the world, is quite a common cognomen. The surname الرباعي is habitual in Jordan, where it is quite a common surname, Libya, and Yemen, where it is quite a rare surname. Very seldom, الرباعي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| الرباعي | Saudi Arabia, Yemen, Egypt, Libya, Jordan |
| Roubai | United Kingdom, Algeria, United States, India, France |
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عزوز الرباعي Tunisian lawyer and politician (1919-1993), TN (b. 1919) |
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صابر الرباعي Tunisian singer, TN (b. 1967) |
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أحمد الرباعي Tunisian singer, TN (b. 1997) |
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| جليلة الرباعي Tunisian pharmacist, TN |
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طه, احمد, احسن, عبده, عبدو, عباس, عبود, عادل, عاطف, عاصم, عصام, علاء, عماد, عمار, بشير, بشار, بسام, بندر, بلال, سليم, سمير, سوما, اكرم, ايوب, ايمن, انور, انس, ابو, عبد, علي, عمر, بدر, سيف, سعد, حسن, حمد, سالم, أبو, غلا, مرح, نصر, نور, فهد, قصي, يحي, يزن, امير, امين, زيد, and سامي