Cognomen Selén (Selén 
) , in all the world, is a very rare last name. The cognomen Selén is habitual in Sweden, where it is a rare surname, Finland, and Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Selén | Argentina, Finland, Sweden |
| carl erik selén SE (b. 1836) |
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| rune selén (b. 1916) |
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| kari selén Finnish historian, FI (b. 1940) |
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| jan-olof selén SE (b. 1944) |
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| selén jan Ph.D. Uppsala Universitet 1975 |
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| yngve selén Ph.D. Uppsala Universitet 2007 |
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