Family name Rhys (Rhys 
, ريس 
, 瑞斯 
, among others...) , globally, is quite a common last name. The cognomen Rhys is habitual in Western Asia, particularly Palestinian Territory, where it is quite a common surname, Syria, where it is quite a rare surname, and Israel. Not in comparison with a country's population, the name is most common in Syria, Egypt, and Palestinian Territory. More frequently, Rhys is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rhys | New Zealand, Australia, United States, United Kingdom, Democratic Republic of the Congo |
| ريس | Iraq, Egypt, Sudan, Palestinian Territory, Syria |
| 瑞斯 | China |
| リース | Japan |
| Рис | Kazakhstan, Kyrgyzstan, Russia, Ukraine |
| Риз | Russia |
| ריס | Israel |
| hywel ap rhys king of part or all of Glywysing (b. 830) |
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| gruffydd ap rhys Prince of Deheubarth, died 1137, GB (b. 1090) |
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| maelgwn ap rhys Prince of part of the kingdom of Deheubarth (b. 1170) |
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| maredudd ap rhys Welsh prince of Deheubarth, GB (b. 1250) |
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| maelgwn ap rhys Welsh rebel (b. 1250) |
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| gruffydd ap rhys Welsh nobleman, died c. 1267, IE (b. 1250) |
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| maredudd ap rhys poet (b. 1450) |
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| tomas ap ieuan ap rhys Welsh poet, GB (b. 1510) |
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| siôn dafydd rhys Welsh scholar, GB (b. 1534) |
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| philip ap rhys Welsh organist and composer (b. 1547) |
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| hywel rhys poet of the parish of Vaynor, Brecknock (1715? -1799) (b. 1715) |
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| david rhys rhymester and minstrel from Llanbrynmair (b. 1742) |
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| mary rhys rhymester and minstrel from Llanbrynmair (b. 1744) |
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| thomas rhys rhymester and minstrel from Llanbrynmair (b. 1750) |
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grace rhys Irish writer, GB (b. 1865) |
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Owen, Turner, Harris, Hughes, Walker, Wilson, Collins, Bennett, Roberts, Jackson, Johnson, Jenkins, Edwards, Watkins, Anderson, Campbell, Phillips, Robinson, Richards, Thompson, Harrison, Williams, Thomas, Taylor, Davies, Powell, Moore, Smith, Allen, Adams, Clark, Brown, Kelly, Parry, Price, Davis, Griffiths, Lewis, James, Jones, Evans, White, Young, Martin, Morris, Morgan, Miller, Clarke, Lloyd, and Llewellyn