All around the world, יאנוש (Janusz 
, János , Yanush 
) is a common boy's first name. The first name יאנוש is characteristic of Eastern Europe, particularly Poland, where it is a common boy's name, Hungary, and Romania, where it is quite a common masculine name (explore the name in all countries). More prevalently, יאנוש is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Janusz, János | Germany, Poland, United States, Romania, Hungary |
| Yanush | Canada, Bulgaria, United States, Romania, Spain |
| יאנוש | Israel |
Džons, Erwann, Evan, Gian, Gianni, Giannis, Giovan, Giovanni, Giuàn, Hannes, Hanns, Hans, Honsa, Honza, Huans, Ian, Ianka, Ieuan, Ifan, Ioan, Ioann, Ioannes, Ioannis, Ion, Ionut, Ionuț, Ivan, Ivano, Ivans, Ivashka, Ivo, Iván, Iwan, Iwo, Jaan, Jack, Jan, Janka, Janos, Janosch, Janoš, Janus, Jean, Jehan, Jhoao, Joan, Joannes, Joao, Jogvan, Johan,
יאנוש is also a name for the fictitious and mythical characters: Janusz Tracz , character in Plebania; János Boka , character in The Paul Street Boys; Janusz Dreyfus , character in Spadkobiercy; Janusz Odrowaz , the operatic character in the opera Halka and Janusz Wojnarowski .