Cognomen Ускен (Ускен 
, Usken 
) , in all the world, is a rare last name. The cognomen Ускен is characteristic of Norway, where it is quite a rare surname, Kyrgyzstan, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it is commonest in Norway, the United States, and Kyrgyzstan. Likewise, Ускен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ускен | Kazakhstan, Kyrgyzstan |
| Usken | Kazakhstan, United States, Norway |