Globally, Rahaina (Rahaina 
) is a rare female first name. The forename Rahaina is habitual in India, where it is a very rare girly name, and Nigeria, where it is an extremely rare girly name. Very seldom, Rahaina is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rahaina | Indonesia, Malaysia, Philippines, Nigeria, India |