Throughout the world, Maria Kelly (Maria Kelly 
) is a rare girly first name. The first name Maria Kelly is habitual in Bolivia, where it is a rare female name, Peru, and Spain, where it is a very rare dominantly female, but uncommonly masculine name. Very seldom, Maria Kelly is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Maria Kelly | Peru, Spain, Bolivia, Brazil, Ecuador |