Worldwide, 宇垣 (宇垣 
) is a very rare girly first name. The first name 宇垣 is habitual in Eastern Asia, particularly China, where it is an extremely rare girly name. Very seldom, 宇垣 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 宇垣 | China |
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宇垣一成 Japanese politician (1868-1956), JP (b. 1868) |
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宇垣纏 Imperial Japanese Navy admiral, JP (b. 1890) |
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| 宇垣完爾 JP (b. 1889) |
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宇垣美里 Japanese announcer, JP (b. 1991) |
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| 宇垣 秀成 Japanese voice actor, JP (b. 1963) |
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