Surname Иваыло (Ivaylo 
, Иваыло 
) , globally, is a rare family name. The last name Иваыло is habitual in Bulgaria, where it is quite a rare surname, Spain, where it is a rare surname, and Greece. In absolute terms, it is the most numerous in Spain, Bulgaria, and China. Predominantly, Иваыло is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ivaylo | Romania, Spain, Bulgaria, United States, Greece |
| Иваыло | Russia |