| Genre: | Telenovela |
| Creator: | El Árbol Telefe Contenidos |
| Director: | Pablo Ambrosini Omar Aiello Negro Luna |
| Starring: | Nancy Dupláa Pablo Echarri Miguel Ángel Solá Juan Gil Navarro Esther Goris Dolores Fonzi Marco Antonio Caponi Ludovico Di Santo Martín Seefeld Juan Pedro Lanzani Mónica Antonópulos |
| Theme Music Composer: | Miss Bolivia |
| Opentheme: | "María, María" |
| Country: | Argentina |
| Language: | Spanish |
| Num Seasons: | 1 |
| Num Episodes: | 116 |
| Producer: | Pablo Echarri Martín Seefeld Gustavo Marra |
| Runtime: | 60 minutes |
| Channel: | Telefe |
La Leona was an Argentine telenovela produced by El Árbol by Pablo Echarri and Martín Seefeld in association with Telefe Contenidos. Its first broadcast was on January 18, 2016 and its last broadcast on July 14, 2016 after 116 chapters. It was transmitted from Monday to Friday at 11:45 pm on the screen of Telefe. It was starred by Nancy Dupláa and Pablo Echarri and the antagonistic participations of Miguel Ángel Solá, Esther Goris, Marco Antonio Caponi, Ludovico Di Santo, Juan Gil Navarro, Dolores Fonzi, Martín Seefeld, Juan Pedro Lanzani and Mónica Antonópulos. The program featured the stellar performances of Susú Pecoraro, Patricia Palmer, Andrea Pietra, Lito Cruz, Paula Cancio, Julia Calvo, Diego Alonso Gómez, Nico García, Alfredo Castellani and the special participation of Hugo Arana. It also has the youth participation of Antonia Bengoechea, Joaquín Flamini and Azul Fernández and the debut of Andrea Rincón as an actress on television. The Television Series won the 2017 Martín Fierro for Best Daily Fiction.
It is based on a textile factory about to break where María Leone (Nancy Dupláa) will play a fundamental role, defending the rights of the employees of this factory owned by the Miller family.