Postal 2 (stylized as Postal²) is a first-person shooter video game by Running with Scissors, and it is the sequel to the 1997 game Postal. Both are intentionally highly controversial due to high levels of violence and stereotyping. Unlike its predecessor, Postal 2 is played completely in first-person based on the Unreal Engine. Due to its graphic nature, Postal 2 has been banned in Australia and several other countries. Scenes of the game can be seen in the music video of the Black Eyed Peas single "Where Is the Love?".

The game received a mixed reception from critics upon its release in 2003, with some reviewers going so far as to give the game a score of zero, while others argued in favour of the game's concept and implementation. Regardless, the game was successful enough to receive several expansions and to be included in multiple compilations, and a film adaptation of the game and its predecessor was made in 2008. Postal III, the next installment of the Postal franchise, was released in 2011 after being developed by Running With Scissors and Akella using Valve Corporation's Source engine.