Surname Ninaka (Ninaka 
) , across the world, is a very rare last name. The surname Ninaka is habitual in Georgia, where it is a rare surname, Canada, where it is an extremely rare surname, and Venezuela. Measured by absolute frequency, this name is the most popular in Georgia, India, and Canada. More prevalently, Ninaka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ninaka | Georgia, India, Canada, Brazil, Venezuela |