In all the world, Gladwyn (Gladwyn 
, גלדווין 
) is a rare largely masculine, but seldom girly first name. The given name Gladwyn is habitual in Barbados, where it is quite a rare feminine name, Philippines, where it is a rare mostly male, but infrequently girly name, and South Africa, where it is a rare male name. Not in comparison with a country's population, this name is the most popular in Philippines, South Africa, and the United States. Much less frequently, Gladwyn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gladwyn | United Kingdom, United States, South Africa, Indonesia, Philippines |
| גלדווין | Israel |
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hubert miles gladwyn jebb, 1st baron gladwyn acting Secretary-General of the United Nations (1900-1996), GB (b. 1900) |
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| gladwyn jebb (1877-1947) (b. 1877) |
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| gladwyn kingsley noble U.S. zoologist and herpetologist (1894–1940), US (b. 1894) |
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| gladwyn m. childs American anthropologist and missionary, US (b. 1896) |
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| gladwyn bush Caymanian painter (1914-2003), GB (b. 1914) |
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| gladwyn kingsley noble American anthropologist, US (b. 1923) |
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