Family name Elby (Elby 
) , around the globe, is a rare last name. The cognomen Elby is characteristic of Honduras, where it is a rare surname, Malaysia, and Venezuela. In absolute terms, it most frequently occurs in Indonesia, Malaysia, and Egypt. More prevalently, Elby is the forename as well as the last name.
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| Elby | Indonesia, Malaysia, United States, India, Democratic Republic of the Congo |
| jules elby French politician, FR (b. 1857) |
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| henri elby French politician (1894-1974), FR (b. 1894) |
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| henri elby French politician (1918-1986), FR (b. 1918) |
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brooke elby American association football player, US (b. 1993) |
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| elby titus researcher ORCID ID = 0000-0002-6981-7428 |
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| elby a researcher |
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| yvette elby BE |
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