Family name Casquet (Casquet 
) , in the world, is a rare cognomen. The surname Casquet is characteristic of Argentina, where it is a rare surname, Spain, and France. Measured by absolute frequency, it is the most numerous in Argentina, Brazil, and Spain. Very seldom, Casquet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casquet | Germany, France, Argentina, Spain, Brazil |
|
noemí casquet Spanish journalist, ES (b. 1992) |
|
| juliane casquet researcher |
|