Family name Lyon (ليون 
, Lyon 
, 里昂 
, and others...) , across the world, is a common surname. The last name Lyon is characteristic of Isle of Man, where it is quite a common surname, Fiji, and the United Kingdom, where it is quite a rare surname. In absolute terms, the name is most common in the United States, the United Kingdom, and France. Very seldom, Lyon is the forename as well as the last name.
| VARIANT | COUNTRY |
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| ليون | Syria, Saudi Arabia, Iraq, Sudan, Egypt |
| Lyon | United Kingdom, United States, Australia, France, Canada |
| 里昂 | China |
| ライアン | Japan |
| Лион | Bulgaria, Kyrgyzstan, Russia, Kazakhstan, Armenia |
| ליון | Israel |
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eucher de lyon 5th century Bishop of Lyon, FR (b. 380) |
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viateur de lyon French saint, FR (b. 400) |
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| elpidius of lyon FR (b. 350) |
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| constantius of lyon Roman Gaul cleric and writer (b. 430) |
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sacerdos de lyon French saint and bishop of Lyon, FR (b. 487) |
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nizier de lyon Archbishop of Lyon, FR (b. 513) |
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| éthère de lyon French saint and Bishop of Lyon (d. 602) (b. 550) |
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| genès de lyon Roman Catholic archbishop, FR (b. 700) |
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| florus de lyon author, FR (b. 800) |
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| john lyon, lord of glamis Scottish politician, GB (b. 1340) |
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| patrick lyon, 1st lord glamis Scottish nobleman (b. 1402) |
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| alexander lyon, 2nd lord glamis Scottish castellan (b. 1430) |
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| john lyon, 3rd lord glamis Scottish nobleman, GB (b. 1431) |
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corneille de lyon Dutch painter (1500s-1575), FR (b. 1505) |
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| john lyon farmer and benefactor who endowed Harrow School, GB (b. 1510) |
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