Cognomen Iyoka (Iyoka 
) , in all the world, is a rare last name. The surname Iyoka is habitual in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is a rare surname, Tanzania, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Tanzania, and Nigeria. Very seldom, Iyoka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iyoka | Tanzania, Nigeria, Democratic Republic of the Congo, Japan, China |