Family name ไอร่ (Ai 
, Arai 
, ไอร่) , all around the world, is a widespread last name. The surname ไอร่ is habitual in Malaysia, where it is quite a common surname, Macao, and China (explore the name in all countries). Not in comparison with a country's population, it is commonest in China, Malaysia, and India. Also, ไอร่ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ai | Malaysia, Japan, China, Myanmar, Indonesia |
| Arai | Malaysia, China, India, Myanmar, Indonesia |