Throughout the world, Rhodri (Rhodri 
, ロドリー) is a rare boy's first name. The forename Rhodri is habitual in Fiji, where it is quite a rare masculine name, the United Kingdom, where it is a rare male name, and Australia, where it is a very rare boy's name. Measured by absolute frequency, the name is most common in the United Kingdom, Fiji, and the United States. Much less frequently, Rhodri is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Rhodri | United Kingdom, Australia, Ireland, Fiji, United States |
| rhodri ap idwal King of Gwynedd (b. 690) |
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rhodri mawr King of Gwynedd who unified the whole of Wales (c. 820–878), GB (b. 820) |
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| rhodri ap hyfaidd King of Dyfed (b. 845) |
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| cadell ap rhodri King of Seisyllwg (b. 854) |
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| anarawd ap rhodri King of Gwynedd between 878 and 916., GB (b. 900) |
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| rhodri ab owain gwynedd Prince of Gwynedd (b. 1135) |
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| rhodri ap gruffudd Prince of the Kingdom of Gwynedd (b. 1230) |
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rhodri morgan First Minister of Wales (1939-2017), GB (b. 1939) |
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rhodri glyn thomas British politician (born 1953), GB (b. 1953) |
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rhodri marsden British journalist and musician, GB (b. 1971) |
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rhodri ap dyfrig New media and social media expert, GB (b. 1977) |
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rhodri meilir Welsh actor, GB (b. 1978) |
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| rhodri jeffreys-jones American academic (b. 1942) |
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| rhodri walters Reading Clerk and Head of Corporate Services, House of Lords, 2007–14 (b. 1950) |
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| rhodri thompson British barrister, GB (b. 1960) |
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Pugh, Thomas, Norman, Harris, Holmes, Hughes, Wilson, Andrews, Parfitt, Perkins, Roberts, Rowland, Jenkins, Edwards, Harries, Howells, Hopkins, Walters, Meredith, Phillips, Richards, Williams, Taylor, George, Davies, Daniel, Ross, Rees, John, Owen, Mason, Smith, Bevan, Bowen, Parry, Price, Griffiths, David, Lloyd, James, Jones, Ellis, Evans, Owens, Morris, Morgan, Samuel, Powell, Lewis, and Cartwright