Nizhalgal (pronounced [n̪iɻalɡaɭ] transl. Shadows) is a 1980 Indian Tamil-language drama film co-written and directed by Bharathiraja. The film stars primarily newcomers such as S. Rajasekar (credited as Rajasekaran), Raadhu (credited as Rohini), Ravi, Chandrasekhar and Suvitha. It revolves around a group of youngsters and their struggles to overcome the challenges faced by them in society.

The film's crew contained a host of newcomers including the lyricist Vairamuthu and Manivannan, both would later go on to become an established lyricist and a director respectively. It was released on 6 November 1980. Though a commercial failure, the film received critical acclaim and was screened at the "Indian Panorama" section of the International Film Festival of India in 1981. The same year it won two awards at the Tamil Nadu State Film Awards.