Cognomen Рифаи (Rifai 
, Rifa'I 
, Рифаи 
) , throughout the world, is a widespread last name. The surname Рифаи is habitual in Lebanon, where it is a common surname, Indonesia, where it is quite a common surname, and United Arab Emirates. Measured by absolute frequency, the name is most common in Indonesia, Lebanon, and Morocco. Very seldom, Рифаи is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rifai | Morocco, Indonesia, Egypt, Lebanon, Malaysia |
| Rifa'I | Singapore, Malaysia, United States, Indonesia |
| Рифаи | Russia |