Surname Ioam (Ioam 
) , in all the world, is an extremely rare cognomen. The cognomen Ioam is characteristic of Southern Europe, particularly Spain, where it is a very rare surname. Predominantly, Ioam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ioam | Romania, United Kingdom, Spain, United States, Afghanistan |