Surname Ilseng (Ilseng 
) , across the world, is a very rare last name. The cognomen Ilseng is habitual in Norway, where it is quite a rare surname, and the United States, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ilseng | Norway, United States |
| marit gran ilseng Norwegian writer (b. 1971) |
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| arne ilseng researcher |
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Mr, Jerry, Jimmy, Tonya, Terry, Emily, Vonda, Fride, Rodney, Rhonda, Janzen, Jøran, Holden, Matthew, Brendan, Kaitlin, Grayson, Jeffery, Jonny, Jonas, Dylan, Donna, Kim, Liv, Jon, Jã, Unn, Matt, Mona, Rita, Virginia, Jeff, Erik, Vera, Marla, Svein, Amber, Kelly, Randy, Robin, Tore, and Elizabeth