Surname Eastabrook (Eastabrook 
) , around the world, is a rare family name. The last name Eastabrook is characteristic of New Zealand, where it is a rare surname, Canada, and the United Kingdom. Measured by absolute frequency, the name is most common in the United Kingdom, the United States, and Canada.
| VARIANT | COUNTRY |
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| Eastabrook | France, Australia, United Kingdom, Canada, United States |
| catherine henrietta eastabrook (born 1865) (b. 1865) |
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| andrew eastabrook reseacher in New Zealand |
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| john eastabrook Peerage person ID=652080 |
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| genevieve d eastabrook researcher (ORCID 0000-0001-9184-2796) |
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