Cognomen Cayman (Cayman 
) , in the world, is a rare surname. The surname Cayman is characteristic of Cayman Islands, where it is quite a rare surname, Belgium, and Jamaica, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Philippines, Belgium, and Turkey. Likewise, Cayman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cayman | Turkey, Taiwan, Belgium, United States, Philippines |
| richard cayman (Belgian, 1883–1923), BE (b. 1883) |
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| robert cayman Belgian field hockey player (1919-2001), BE (b. 1919) |
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janice cayman Belgian footballer, BE (b. 1988) |
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| thierry cayman Belgian comics artist, BE (b. 1962) |
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