Family name Casimy (Casimy 
) , all around the world, is an extremely rare last name. The surname Casimy is characteristic of Canada, where it is an extremely rare surname, Brazil, and the United States. More prevalently, Casimy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casimy | Democratic Republic of the Congo, Brazil, Canada, United States |