Penguin is a 2020 Indian Tamil-language mystery thriller film written and directed by Eashvar Karthic in his directorial debut. The film was produced by Kaarthekeyen Santhanam, Sudhan Sundaram and Jayaram, under Stone Bench Films, backed by Karthik Subbaraj, and Passion Studios respectively. It stars Keerthy Suresh as a pregnant woman who is traumatised by nightmares about the unsolved kidnapping of her first child, and later embarks on a mission to solve the mystery of his disappearance.

The project was announced in August 2019. Eashvar Karthic wrote the script within 18 days, and shooting was completed within 36 days between September and November 2019 at Kodaikanal. The film features cinematography by Karthik Palani and editing was done by Anil Krish; the film has music scored by Santhosh Narayanan.

Penguin was released directly through Amazon Prime Video on 19 June 2020, after a theatrical release failed to happen due to the COVID-19 lockdown in India. The film received mixed reviews from critics, praising the performance of Keerthy and the cinematography whereas the inconsistent writing received criticism.