Kaanathaya Penkutty is a 1985 Indian Malayalam mystery thriller film, directed by K. N. Sasidharan. The film follows the mystery of a missing girl, featuring Bharath Gopi, Jayabharathi, and Mammootty. Thilakan and Jagathy Sreekumar also appear in prominent roles, while Ramachandran and V. K. Sreeraman play the investigators. The film has musical score by Jerry Amaldev. The film was based on a true incident that happened in Thrissur in the year 1979 where a girl went missing and the same revealed the illegal relationship of her mother. It was Sasidharan's second film after Akkare (1984).