Cognomen Wachuku (Wachuku 
) , across the world, is a rare last name. The cognomen Wachuku is characteristic of Nigeria, where it is a very rare surname, the United States, and the United Kingdom, where it is an extremely rare surname. Likewise, Wachuku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wachuku | Germany, United Kingdom, Nigeria, United States, Canada |
| josaiah ndubuisi wachuku King of Ngwa-Land, NG (b. 1850) |
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| jaja wachuku Nigerian lawyer, politician and diplomat (1918-1996), NG (b. 1918) |
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| chuku wachuku US educated Nigerian economist, NG (b. 1947) |
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