Across the world, Яннис (Giannis 
, Yannis 
, Yiannis , among others...) is a common primarily masculine, but scarcely female given name. The first name Яннис is habitual in Cyprus, where it is a common masculine name, Greece, and Macao, where it is quite a rare feminine name. Measured by absolute frequency, it most frequently occurs in Greece, France, and Germany. Very seldom, Яннис is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giannis, Yiannis | Germany, Cyprus, United States, Greece, France |
| Yannis | Germany, Cyprus, Greece, France, Democratic Republic of the Congo |
| Jannis, Iannis | Germany, Belgium, United States, Greece, France |
| Γιάννης | Greece |
| Яннис | Kazakhstan, Russia, Ukraine |
Džons, Erwann, Evan, Gian, Gianni, Giannikos, Giovan, Giovanni, Giuàn, Hannes, Hanns, Hans, Honsa, Honza, Huans, Ian, Ianka, Ieuan, Ifan, Ioan, Ioanis, Ioann, Ioannes, Ioannis, Ion, Ivan, Ivano, Ivans, Ivashka, Ivo, Iván, Iwan, Iwo, Jaan, Jack, Jan, Janis, Janka, Jannys, Janos, Jean, Jehan, Jhoao, Joan, Joannes, Joao, Jogvan, Johan, Johann, Johannes,
Яннис is also a name for the fictitious and mythical characters: Giannis , the theatrical character in the play "Educating Daddy"; Giannis , the theatrical character in the play "Seventh Day of Creation"; Giannis , the theatrical character in the play "Breaking dawn"; Giannis , the theatrical character in the play "The Backyard of Miracles" and Giannis , the theatrical character in the play "The murderer".
Кочос, Пападопулос, Христянов, Миронидис, Диамантиди, Богданов, Гурованов, Касамбули, Калайдзидис, Токмазов, Сапакас, Антонов, Козьмов, Чолариди, Крифаридис, Калафат, Цулакис, Цикарлис, Домотенко, Аспроклисётис, Эрмиди, Ливасов, Тонаев, Жосан, Параскевов, and Анастасиадис