Last name Hellyar (Hellyar 
) , in the entire world, is a rare family name. The cognomen Hellyar is characteristic of Australia, where it is a rare surname, the United Kingdom, and New Zealand. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Hellyar | United Kingdom, South Africa, Australia, United States, New Zealand |
| katherine hellyar Peerage person ID=466666 (b. 1558) |
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| christine hellyar New Zealand artist, NZ (b. 1947) |
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| john hellyar Peerage person ID=466615 |
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| christiana hellyar |
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