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Cognomen Louon (Louon
) , in all the world, is a very rare last name. The cognomen Louon is habitual in Belgium, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Very seldom, Louon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Louon | Belgium, United States, United Kingdom |