Dude, Where's My Car? is a 2000 American stoner comedy film directed by Danny Leiner. The film stars Ashton Kutcher and Seann William Scott as two best friends who find themselves unable to remember where they parked their vehicle after a night of recklessness, ultimately uncovering a conspiracy that threatens the universe. Supporting cast members include Kristy Swanson, Jennifer Garner, and Marla Sokoloff.

Though the film was panned by most critics, it was a box office success and has managed to achieve a cult status. The film's title became a minor pop-culture saying, and was commonly reworked in various pop-cultural contexts during the 2000s.