Surname Cadette (Cadette 
) , all over the world, is quite a rare cognomen. The family name Cadette is characteristic of Latin America and the Caribbean, particularly Saint Lucia, where it is a common surname, Dominica, and Trinidad and Tobago, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Brazil, Saint Lucia, and the United States. Also, Cadette is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Cadette | Saint Lucia, Democratic Republic of the Congo, Trinidad and Tobago, United States, Brazil |
| mademoiselle saint-val cadette French actress, FR (b. 1752) |
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| ignatius cadette West Indian cricketer (b. 1957) |
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| richard cadette English professional footballer (born 1965), GB (b. 1965) |
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| nathan cadette (born 1980), GB (b. 1980) |
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