Family name เซซิเลีย (Sesilia 
, เซซิเลีย 
) , worldwide, is quite a rare cognomen. The surname เซซิเลีย is habitual in Namibia, where it is quite a rare surname, Georgia, and Indonesia, where it is a rare surname. In absolute terms, it most frequently occurs in Indonesia, Mexico, and Namibia. More frequently, เซซิเลีย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sesilia | Namibia, Indonesia, Mexico, Nigeria, Tanzania |
| เซซิเลีย | Thailand |