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Last name Oleko (Oleko
) , all over the world, is quite a rare surname. The cognomen Oleko is characteristic of the Democratic Republic of the Congo, where it is quite a rare surname, Kenya, where it is a rare surname, and Belgium. Measured by absolute frequency, it is the most numerous in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Kenya, and Nigeria. Very seldom, Oleko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oleko | Belgium, France, Nigeria, Democratic Republic of the Congo, Kenya |