Family name Cayon (Cayon 
, Кайон 
, カヨン 
) , around the globe, is quite a rare cognomen. The surname Cayon is habitual in Philippines, where it is a rare surname, Colombia, and Argentina. Very seldom, Cayon is the forename as well as the last name.
| jean cayon born 1810; died 1865 (b. 1810) |
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| henri félix cayon French painter, born 1878, FR (b. 1878) |
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