Blanca Guerra Islas (born January 10, 1953) is a Mexican actress. In 1983 she was a member of the jury at the 13th Moscow International Film Festival.

Initially she was a dentistry student, but she abandoned her studies to study at the UNAM University Theater Center, which allowed her to debut as a theater actress. Later, she ventured into the cinema acting in the film La loca de los milagros, which marks her artistic debut and the beginning of her extensive film career. She has to his credit more than sixty films.