Across the world, إيوان (Ioan 
, Euan 
, ایوان 
) is a widespread boy's first name. The first name إيوان is habitual in Greece, where it is a widespread masculine name, Romania, and Andorra, where it is quite a common male name. In absolute terms, the name is most common in Romania, Greece, and the United Kingdom. Very seldom, إيوان is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ioan | Greece, Mexico, Spain, Afghanistan, Romania |
| Euan | United Kingdom, Greece, Mexico, Spain, France |
| ایوان | Iran |
Džons, Erwan, Erwann, Evan, Ewan, Gian, Gianni, Giannis, Giovan, Giovanni, Giuàn, Hannes, Hanns, Hans, Honsa, Honza, Huans, Ian, Ianka, Ieuan, Ifan, Ioann, Ioannes, Ioannis, Ion, Ionut, Ionuț, Ivan, Ivano, Ivans, Ivashka, Ivo, Iván, Iwan, Iwo, Iywan, Jaan, Jack, Jan, Janka, Janos, Jean, Jehan, Jhoao, Joan, Joannes, Joao, Jogvan, Johan, Johann,
إيوان is also a prevalent name for the fictitious and mythical characters: Owen Lars , the Star Wars character, Star Wars: Episode IV – A New Hope; Owen , the fictional character from the video game The Last of Us Part II; Owen Mercer , character in Identity Crisis; Ivan Orav , the ultra-patriotic fictional character created by Andrus Kivirähk, Ivan Orava mälestused and Owen , the fictional character from the Total Drama television series, Total Drama Island, and in many other works.