Cognomen Takanaga (Takanaga 
) , across the world, is a very rare family name. The surname Takanaga is characteristic of China, where it is an extremely rare surname, and the United States. Much more prevalently, Takanaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Takanaga | United States, Japan, China |
| hitomi takanaga researcher |
|