Around the world, Cassiani (Cassiani 
) is a rare predominantly female, but very seldom male first name. The given name Cassiani is characteristic of Brazil, where it is a rare feminine name, and Italy, where it is a very rare unisex name. More frequently, Cassiani is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cassiani | Brazil, Italy, United States, Venezuela, Colombia |
| ascanio cassiani Roman Catholic bishop (b. 1606) |
|