Surname 夏川 (夏川 
, Natsukawa 
) , in all the world, is a very rare family name. The surname 夏川 is characteristic of China, where it is an extremely rare surname, the United States, and Philippines. More prevalently, 夏川 is the forename as well as the last name.
| 夏川結衣 Japanese actress, JP (b. 1968) |
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| 夏川りみ Japanese singer (born 1973), JP (b. 1973) |
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| 夏川ひかる Japanese AV idol, JP (b. 1980) |
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