Family name 太郎 (Taro 
, 太郎 , Tailang 
) , in all the world, is a common last name. The cognomen 太郎 is habitual in Vanuatu, where it is quite a common surname, Solomon Islands, and Estonia, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in India, Indonesia, and Philippines. More prevalently, 太郎 is the forename as well as the last name.
| 手島 太郎 Japanese rower, JP (b. 1912) |
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| 福富 太郎 Japanese businessperson, JP (b. 1931) |
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| 岩本 太郎 JP (b. 1960) |
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