Cognomen 谷太郎 (谷太郎 
) , around the world, is a very rare surname. The cognomen 谷太郎 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 谷太郎 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 谷太郎 | China |