All over the world, Mary Delia (Mary Delia 
) is a very rare feminine given name. The first name Mary Delia is habitual in Peru, where it is a very rare female name, and Philippines. Much less frequently, Mary Delia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mary Delia | Costa Rica, Peru, Philippines, Ecuador, Chile |