Deewaar (transl. The Wall) is a 1975 Indian action crime film written by Salim–Javed and directed by Yash Chopra. The film stars Shashi Kapoor and Amitabh Bachchan, alongside an ensemble cast of Neetu Singh, Nirupa Roy, Parveen Babi, Iftekhar, Madan Puri, Satyen Kappu and Manmohan Krishna. The music was composed by R. D. Burman, while cinematography and editing were handled by Kay Gee Koregaonkar and T. R. Mangeshkar-Pran Mehra. In the film, two impoverished brothers struggle to survive in the slums of Mumbai and eventually find themselves on opposing sides of the law. The film's title signifies the wall that springs up between the two brothers, drawn apart by fate and circumstances in a time of socio-political turmoil.

Deewaar was released worldwide on 24 January 1975 to critical acclaim and praise for its story, script, music cast performances (especially Bachchan, Kapoor and Roy). The film was commercially successful and is considered a ground-breaking cinematic masterpiece, with India Times ranking Deewaar amongst the Top 25 Must See Bollywood Films. It is also one of three Hindi-language films to be included on the list of 1001 Movies You Must See Before You Die.

The film had a significant impact not only on Indian cinema but also on Indian society; its anti-establishment themes and Bachchan's anti-hero vigilante character resonated with audiences. The movie cemented Bachchan's popular image as the 'Angry young man' of Bollywood cinema. Forbes India included Bachchan's performance in the film on its list of "25 Greatest Acting Performances of Indian Cinema". The film also cemented the success of Salim–Javed, who went on to write more blockbuster films; their value skyrocketed and they were being paid as well as the leading actors of the time. Deewaar's influence also extends to world cinema, influencing films from Hong Kong and British cinema.