Cognomen Ladbrook (Ladbrook 
) , in the entire world, is a rare surname. The surname Ladbrook is characteristic of Isle of Man, where it is quite a rare surname, New Zealand, and Australia, where it is a rare surname. In absolute terms, this name is the most popular in the United Kingdom, Australia, and New Zealand.
| VARIANT | COUNTRY |
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| Ladbrook | United Kingdom, Australia, South Africa, New Zealand, United States |
| james ladbrook botanist (b. 1870) |
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| sara virginia ladbrook (born 1945) (b. 1945) |
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| philippa mary ladbrook (born 1953) (b. 1953) |
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| mark ladbrook Australian sprinter, AU (b. 1972) |
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| frank walter ladbrook Peerage person ID=605636 |
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| elyse ladbrook researcher (ORCID 0000-0001-7219-8253) |
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