Across the world, Casley (Casley 
) is a very rare epicene first name. The forename Casley is habitual in South Africa, where it is a very rare unisex name, Nigeria, where it is an extremely rare boy's name, and the United States, where it is an extremely rare gender-neutral name. More prevalently, Casley is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casley | Australia, Ireland, Canada, United States, United Kingdom |
| ross thomas casley Ph.D. Stanford University 1991 |
|
|
| riva casley GB (b. 1999) |
|