Ali G Indahouse (2002) is a British comedy film directed by Mark Mylod and starring the fictional character Ali G, who is performed by British comedian Sacha Baron Cohen. The character was developed for the Channel 4 TV series The 11 O'Clock Show (1999) and Da Ali G Show (2000).

Ali G Indahouse was released on DVD in Region 2 in the United Kingdom on 11 November 2002, and in Region 1 in United States and Canada on 2 November 2004. It is the first of three films based on Baron Cohen's characters from Da Ali G Show, the second being Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan (2006), and the third Brüno (2009).