Surname อาราอิ (Arai 
, อาราอิ 
) , throughout the world, is quite a common family name. The cognomen อาราอิ is habitual in Japan, where it is quite a rare surname, United Arab Emirates, and Singapore. Measured by absolute frequency, this name is the most popular in Japan, India, and Indonesia. Also, อาราอิ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arai | Brazil, Japan, United States, India, Indonesia |
| อาราอิ | Thailand |