Across the world, Casseus (Casseus 
, Casséus 
) is a very rare predominantly boy's, but scarcely feminine first name. The first name Casseus is characteristic of the Dominican Republic, where it is a rare masculine name, and the United States, where it is an extremely rare largely male, but uncommonly female name. More prevalently, Casseus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casseus | Haiti, France, Dominican Republic, Brazil, United States |
| Casséus | Haiti, United States, France, Canada |
| frantz casseus Haitian-American guitarist and composer, HT (b. 1915) |
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