Irumbu Thirai (transl. Iron Curtain) is a 1960 Indian Tamil-language film produced and directed by S. S. Vasan. The film stars Sivaji Ganesan, Vyjayanthimala, K. A. Thangavelu and B. Saroja Devi, with S. V. Ranga Rao, Pandari Bai and Vasundhara Devi in supporting roles. A remake of the Hindi film Paigham (1959), it revolves around the two brothers Manikam and Kondamuthu and their mill owner.

The soundtrack was composed by S. V. Venkatraman and the lyrics were written by Kothamangalam Subbu, Papanasam Sivan and Pattukkottai Kalyanasundaram. The editing was done by M. Umanath while the camera was handled by P. Elappa and N. C. Bala Krishna. The film was released on 14 January 1960 and ran more than 175 days in theatres.

Directed by : S. S. Vasan
Story by : Ganesh Subramaniam along with Gemini Story Department
Produced by : S. S. Vasan
Starring : Sivaji Ganesan , Vyjayanthimala , K. A. Thangavelu , B. Saroja Devi
Cinematography: P. Elappa , N. C. Bala Krishna
Edited by : M. Umanath
Music by : S. V. Venkatraman
Production company : Gemini Studios
Release date : 14 January 1960
Country : India
Language : Tamil