| Office: | National Senator |
| Constituency: | Entre Ríos |
| Termstart: | 10 December 2019 |
| Party: | Radical Civic Union |
| Birth Date: | 7 March 1943 |
| Otherparty: | Juntos por el Cambio |
| Birth Place: | Diamante, Entre Ríos, Argentina |
Stella Maris Elisa Olalla de Moreira (born 7 March 1943) is an Argentine politician from the Radical Civic Union. She currently sits as a National Senator for Entre Ríos Province since 2019.[1]