Last name Fitzhenry (Fitzhenry 
) , across the world, is quite a rare family name. The cognomen Fitzhenry is habitual in Ireland, where it is quite a rare surname, Australia, where it is a rare surname, and the United Kingdom. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Australia.
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| Fitzhenry | United Kingdom, South Africa, Australia, Ireland, United States |
| meiler fitzhenry Cambro-Norman nobleman and Lord Chief Justice of Ireland (b. 1200) |
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| mrs. fitzhenry Irish actress (b. 1716) |
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louis fitzhenry United States federal judge, US (b. 1870) |
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daniel fitzhenry Australian rugby league footballer and coach, AU (b. 1979) |
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| william hugh shaun fitzhenry (born 1961) (b. 1961) |
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| bridget madeline fitzhenry (born 1963) (b. 1963) |
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| brendan mervyn fitzhenry (born 1964) (b. 1964) |
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| shamus terence fitzhenry (born 1968) (b. 1968) |
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| andrew fitzhenry Australian rugby league footballer (b. 1968) |
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| damien fitzhenry Irish hurler and Gaelic football player, IE (b. 1974) |
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| neil fitzhenry English footballer, GB (b. 1978) |
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| john fitzhenry college basketball player (1964–1966) Saint Francis (PA) |
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| randolph fitzhenry - Bef Jan 1242/1243 |
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| mervyn fitzhenry Peerage person ID=424017 |
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| robert fitzhenry Peerage person ID=104687 |
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