Last name Deaker (Deaker 
) , in the world, is a rare cognomen. The surname Deaker is characteristic of New Zealand, where it is a rare surname, Australia, and the United Kingdom, where it is a very rare surname. Very seldom, Deaker is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Deaker | United Kingdom, Australia, Chile, United States, New Zealand |
| kelvin deaker New Zealand rugby union referee, NZ (b. 1965) |
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| rosalind deaker researcher |
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| dione j deaker researcher (ORCID 0000-0001-7838-1630) |
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| eliza anne deaker Peerage person ID=647281 |
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| james a. deaker Ph.D. Stanford University 2000 |
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Mr, Sharon, Andrew, Antony, Ariana, Pamela, Rachel, Debbie, Graeme, Louise, Joseph, Joanne, Haarin, Olivia, Michael, Kirsten, Michelle, Samantha, Rosalind, Rosemary, Carmelita, Kristopher, Martin, Anne Beverley, Tania, Jamie, Ms, Dee, Jon, Zoe, Shae, Carl, Bill, Kris, Rach, Rita, Dave, Jane, John, Emma, Evie, Sarah, Blair, Debby, David, Dione, James, Jonni, and Raymond George