Family name Arunajadai (Arunajadai 
) , in the world, is an extremely rare cognomen. The surname Arunajadai is habitual in Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Arunajadai | United States |
| srikesh g. arunajadai Ph.D. University of California, Berkeley 2008 |
|