Family name Dayon (Dayon 
, Дайон 
) , throughout the world, is quite a common cognomen. The last name Dayon is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and France. In absolute terms, it is the most numerous in Philippines, France, and the United States. Much less frequently, Dayon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dayon | Philippines, Democratic Republic of the Congo, France, United States, Saudi Arabia |
| Дайон | Russia |
Dayondayon, Даён, and ダヨン
| alexandre dayon French entrepreneur, FR (b. 1967) |
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| dayon ninkovic serbian-American basketball player (b. 1973) |
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| dayon ninkovic college basketball player (1995–1997) Bowling Green State |
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| loïc dayon researcher |
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