Freddy vs. Jason is a 2003 American slasher film directed by Ronny Yu and written by Damian Shannon and Mark Swift. It is a crossover between the A Nightmare on Elm Street and Friday the 13th franchises, being the eighth installment in the former and the eleventh in the latter. The film stars Monica Keena, Kelly Rowland, Jason Ritter, Christopher George Marquette, Lochlyn Munro, and Robert Englund.

The film joins the two series in a shared universe and pits their respective antagonists, Freddy Krueger and Jason Voorhees, against each other. Freddy is weakened and forgotten because the citizens of his home town Springwood have defeated him by using medications that repress dreams. Freddy awakens Jason to stir up fear and grow his powers so that he may return and kill again. Jason turns out to not be as easily controlled as Freddy initially thought, and the two supernatural mass murderers come into conflict. The film is the last film in each franchise before their respective reboots: A Nightmare on Elm Street and Friday the 13th.