Lo imperdonable (1975 telenovela)

Lo imperdonable
Genre	Telenovela
Created by	Caridad Bravo Adams Fernanda Villeli
Directed by	Alfredo Saldaña
Starring	Amparo Rivelles Armando Silvestre Rogelio Guerra Raquel Olmedo
Country of origin	Mexico
Original language(s)	Spanish
No. of episodes	125
Production
Executive producer(s)	Ernesto Alonso
Release
Original network	Canal de las Estrellas
Original release	1975
Chronology
Preceded by	Paloma
Followed by	Mundos opuestos
Related shows	Siempre te amaré (2000)

Lo imperdonable (English: The Unforgivable), is a Mexican telenovela produced by Ernesto Alonso for Televisa in 1975. Based on an original story by Caridad Bravo Adams and Fernanda Villeli. Amparo Rivelles, Armando Silvestre and Rogelio Guerra star as the protagonists, while Raquel Olmedo and Marilú Elizaga star as the antagonists.

In the year 2000, a new adaptation of Lo imperdonable was held, under the title of Siempre te amaré.