Surname Castagnet (Castagnet 
, Castañeta 
, Castagnette 
) , in all the world, is quite a rare cognomen. The surname Castagnet is characteristic of Mauritius, where it is quite a rare surname, Bolivia, and Uruguay. Not in comparison with a country's population, it is commonest in France, Bolivia, and Argentina. Very seldom, Castagnet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Castagnet | France, Mauritius, Australia, Uruguay, Argentina |
| Castañeta | Spain, Chile, Argentina, Bolivia |
| Castagnette | Mexico, France, Mauritius, Australia, United States |
| gabriel castagnet French politician (1886-1960), FR (b. 1886) |
|
|
|
mathieu castagnet French squash player, FR (b. 1986) |
|
| bernard castagnet French politician, FR (b. 1950) |
|
|
| yves castagnet French organist, FR (b. 1964) |
|
|
| jean-claude castagnet FR (b. 1955) |
|
|
| bernard castagnet French politician (Gard) |
|