Gunday (transl. Outlaws) is a 2014 Indian Hindi-language action thriller film written and directed by Ali Abbas Zafar and produced by Aditya Chopra under Yash Raj Films. The film features Ranveer Singh and Arjun Kapoor. Set in 1971–1988 Calcutta, Gunday is a story about two best friends and outlaws, who fall in love with a cabaret dancer, which causes rivalry and misunderstandings between them while a police officer tries to take advantage of this situation to eliminate them.

Zafar conceived the film, which was the last to be narrated to founding patron Yash Chopra, as an amalgam of stories he had heard from his father as a child about the effects of war-caused immigration and the Mafia Raj's illegal marketing of coal. He wrote the film as a tale of the consequences of the struggle of two outlaws against the system, using his father's stories as a backdrop for the characters. Principal photography began in Mumbai in December 2012 before moving to Kolkata, where extensive filming was done. The soundtrack was composed by Sohail Sen, and the lyrics were penned by Irshad Kamil, while Julius Packiam composed the background score, taking over Sen's duties from Zafar's debut, Mere Brother Ki Dulhan, eventually becoming a regular collaborator.

Gunday was released on 14 February 2014, receiving mixed to positive reviews from critics. It was a commercial success, with a box-office gross of ₹1.31 Billion making it the 10th highest-grossing Bollywood release of 2014. The film won Best Action at the 60th Filmfare Awards and was nominated for Best Choreography for the song "Tune Maari Entriyaan."