In all the world, ريثا (Ritha 
, ريثا 
) is a common primarily girly, but very infrequently male given name. The first name ريثا is habitual in Tanzania, where it is quite a common female name, Tunisia, where it is quite a rare primarily boy's, but very infrequently feminine name, and Namibia, where it is quite a rare female name. Not in comparison with a country's population, the name is most common in Tanzania, Indonesia, and India. Much less frequently, ريثا is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ritha | Indonesia, Democratic Republic of the Congo, Tunisia, India, Tanzania |
| ريثا | Iraq |