Surname Olaba (Olaba 
) , around the world, is a rare last name. The last name Olaba is characteristic of Kenya, where it is a rare surname, Nigeria, where it is a very rare surname, and Philippines. Measured by absolute frequency, it most frequently occurs in India, Kenya, and Nigeria. Very seldom, Olaba is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olaba | Kenya, South Africa, Nigeria, Philippines, India |