* Danish: Hej (pronounced "hay")
* Swedish: Hej (pronounced "hay")
* Norwegian: Hei (pronounced "hay")
* Finnish: Hei (pronounced "hay")
* Icelandic: Halló (pronounced "hallo")
As you can see, "Hej" or "Hei" is used in most Scandinavian languages. Icelandic is the only one that uses a different greeting, "Halló".