Family name Halkoaho (Halkoaho 
) , in the entire world, is a very rare surname. The last name Halkoaho is characteristic of Northern Europe, particularly Finland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Halkoaho | Finland |
|
johanna halkoaho Finnish long jumper and hurdler, FI (b. 1977) |
|
|
jenniina halkoaho Finnish sprinter, FI (b. 1982) |
|
| arja halkoaho researcher, FI |
|