Family name Maguiness (Maguiness 
) , around the globe, is a very rare surname. The family name Maguiness is habitual in New Zealand, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Canada. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and New Zealand.
| VARIANT | COUNTRY |
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| Maguiness | New Zealand, Canada, United Kingdom, United States |
Guinness, Magennis, Maginnis, and Mcguinness
| steve maguiness New Zealand cricketer, NZ (b. 1959) |
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| thomas hobbs maguiness Peerage person ID=622268 |
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| ella thomasina maguiness Peerage person ID=622269 |
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| sheilagh maguiness researcher |
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