Surname Shimanaka (Shimanaka 
) , throughout the world, is a very rare cognomen. The surname Shimanaka is characteristic of New Zealand, where it is a very rare surname, Argentina, and the United States, where it is an extremely rare surname. Also, Shimanaka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shimanaka | Philippines, Argentina, New Zealand, United States, China |