Surname 裕一 (裕一 
) , all around the world, is a very rare last name. The family name 裕一 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 裕一 is the forename as well as the last name.
| 塚谷 裕一 Japanese botanist, JP (b. 1964) |
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