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 | South Africa, Philippines, United Kingdom, United States, Indonesia |
| גלדווין | Israel |
|
hubert miles gladwyn jebb, 1st baron gladwyn acting Secretary-General of the United Nations (1900-1996), GB (b. 1900) |
|
| gladwyn jebb (1877-1947) (b. 1877) |
|
|
| gladwyn kingsley noble U.S. zoologist and herpetologist (1894–1940), US (b. 1894) |
|
|
| gladwyn m. childs American anthropologist and missionary, US (b. 1896) |
|
|
| gladwyn bush Caymanian painter (1914-2003), GB (b. 1914) |
|
|
| gladwyn kingsley noble American anthropologist, US (b. 1923) |
|