Main Hoon Na (transl. I am here) is a 2004 Hindi-language masala film directed by Farah Khan (in her directorial debut) and produced by Gauri Khan under the banner Red Chillies Entertainment. The film stars Shah Rukh Khan, Sushmita Sen, Sunil Shetty, Amrita Rao and Zayed Khan while Kirron Kher, Boman Irani and Naseeruddin Shah play supporting roles.. Major Ram Sharma is sent on an undercover mission where he poses as a college student to protect a general's daughter from a dangerous rogue soldier.Development for the film began as early as 2001, however faced a number of delays during production. Main Hoon Na is notable for approaching the Indo-Pakistani conflict from a neutral perspective. Filming took place at St. Paul's School and the surrounding state of West Bengal. The film is also the first production of Red Chillies Entertainment.

Initially scheduled for release in 2003, Main Hoon Na released on 30 April 2004 and received positive reviews from critics. It proved to be a major commercial success at the box office, grossing ₹84 crore, thus becoming the second highest-grossing Indian film of 2004, only surpassed by another Shah Rukh Khan-starrer Veer - Zaara.

At the 50th Filmfare Awards, Main Hoon Na received 12 nominations, including Best Film, Best Director (Farah), Best Actor (Shah Rukh), Best Supporting Actress (Rao), Best Supporting Actor (Zayed) and Best Villain (Shetty), winning Best Music Director (Anu Malik). A snippet of "Lament" from Light of Aiden (Celtic Version) is used throughout the movie.