Last name Cadet (Cadet 
, Cad 
, Каде 
) , around the world, is a common cognomen. The family name Cadet is habitual in Reunion, where it is quite a common surname, Haiti, and Saint Lucia (explore the name in all countries). Not in comparison with a country's population, the name is most common in France, Haiti, and the United States. Very seldom, Cadet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cadet | Haiti, Bangladesh, France, Dominican Republic, United States |
| Cad | Bangladesh, France, United States, Indonesia, China |
| Каде | Kazakhstan, Russia, Ukraine, Kyrgyzstan |
| Kadett | Brazil, United States, India, Nigeria |
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jean cadet de limay French engineer, FR (b. 1732) |
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| joseph-michel cadet CA (b. 1719) |
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| aglaé-geneviève-eurélie cadet de gassicourt, French miniaturist (c. 1738–1801), FR (b. 1738) |
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| jean claude alexis joseph perdry le cadet French politician, FR (b. 1757) |
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| jean-baptiste cadet de beaupré French sculptor, FR (b. 1758) |
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louis cadet French politician, FR (b. 1821) |
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maria rita colaço chiappe cadet Portuguese poet and novelist, PT (b. 1836) |
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| socrate cadet Italian physiologist (1808-1879) (b. 1808) |
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georges le cadet FR (b. 1864) |
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auguste cadet Moroccan architect (1881-1956), FR (b. 1881) |
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| félix cadet (b. 1827) |
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| ernest cadet FR (b. 1832) |
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| jean louis cadet Military officer, NL (b. 1844) |
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roland cadet French official, FR (b. 1909) |
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| victor cadet French swimmer, FR (b. 1878) |
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