Around the world, Onnie (Onnie 
) is quite a rare gender-neutral first name. The forename Onnie is habitual in Botswana, where it is quite a rare girly name, Philippines, where it is a rare gender-neutral name, and Indonesia. Measured by absolute frequency, this name is the most popular in the United States, Indonesia, and Philippines. Much less frequently, Onnie is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Onnie | Malaysia, Indonesia, Botswana, Philippines, United States |
| onnie lattu American Finnish Rear Admiral of the United States Navy, RU (b. 1906) |
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| onnie lee logan midwife, US (b. 1910) |
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| onnie mayshak college basketball player (2000–2001) Harvard |
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| onnie mcintyre |
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| onnie huysinck |
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Cox, Jordan, Thomas, Echols, Forbis, Walker, Mancino, Sherrer, Simpson, Coleman, Balanon, Kendall, Roberts, Duboise, Jackson, Johnson, Edwards, Yeomans, Anderson, Robinson, Lockwood, Williams, Jacque, Dudley, Porter, Parker, Poe, Lee, Carr, Clem, Kirk, Reed, Wong, Smith, Ayers, Brown, Alexander, Parks, Davis, Dixon, Green, Lewis, Jones, Owens, Woods, Martin, Morgan, Cooper, Denny, and Blackshire