Cognomen Ul Ain (Ul Ain 
) , throughout the world, is a rare surname. The family name Ul Ain is characteristic of United Arab Emirates, where it is a rare surname, Pakistan, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Pakistan, United Arab Emirates, and India. Much less frequently, Ul Ain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ul Ain | Pakistan, United Kingdom, India, United Arab Emirates |