Gutterballs is a 2008 Canadian horror comedy film written and directed by Ryan Nicholson. The plot is centered around two rival teams at a bowling alley, Xcalibur Bowling Centre, spending a night after-hours to play against one another. Following a planned sadistic rape against one of the teams members, everybody on both teams begins to get brutally killed one by one by an unknown killer the following night.

As with the director's other work, the film is notoriously known for its crude, brutal and very violent kills. It is also known for its incredibly drawn-out and long rape introduction.