Last name Kainuku (Kainuku 
) , around the world, is a very rare family name. The cognomen Kainuku is habitual in New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and France.
| VARIANT | COUNTRY |
|---|---|
| Kainuku | Australia, New Zealand, France |
| kainuku kapiriterangi ariki (b. 1953) |
|
|
| yvonne kainuku cricketer, NZ (b. 1968) |
|
|
| matani kainuku FR (b. 1973) |
|