Don 2: The King Is Back is a 2011 Indian Hindi-language action thriller film written, co-produced and directed by Farhan Akhtar. It is the second installment in the Don reboot series. Jointly produced by Excel Entertainment and Red Chillies Entertainment, the film stars Shah Rukh Khan as the titular anti-hero, with Priyanka Chopra, Boman Irani, Lara Dutta, Om Puri, Nawwab Shah, Ally Khan, Sahil Shroff and Kunal Kapoor playing supporting roles. A sequel to Don (2006), the film's story takes place 5 years after the previous film when Don (Khan), a powerful international drug lord, plans to steal currency printing plates from a bank in Berlin to take over the counterfeiting business in Europe, while Roma (Chopra) has joined Interpol to hunt him down.

The soundtrack of the film was composed by Shankar–Ehsaan–Loy, while Javed Akhtar penned the lyrics. Jason West served as the film's cinematographer and Anand Subaya was its editor. After the success of the first film, Akhtar had planned a sequel in 2010 which did not work out. It was then officially announced in early 2010, with filming scheduled to begin later that year. Principal photography took place in Berlin, where it was shot extensively.

Don 2 was released on 23 December 2011 in 2D and 3D formats, which also included dubbed versions in Telugu and Tamil languages. The film received positive reviews from critics, receiving praise for its story, cinematography, production design, soundtrack, background score, action sequences and performances of the cast. With a box office gross of over ₹202.81 crore (US$24 million), Don 2 was a global box office blockbuster. At the time of its release, the film was the 3rd highest-grossing Hindi film of 2011.

Don 2 received a number of accolades across various ceremonies in India. At the 57th Filmfare Awards, Don 2 received 5 nominations in award categories including Best Film, Best Director (Farhan) and Best Actor (Khan), and won 2 awards – Best Action and Best Sound Design.