Hostel: Part II is a 2007 American horror film written and directed by Eli Roth, serving as a sequel to Hostel (2005). It is the second installment in the Hostel film series. The film stars Lauren German, Roger Bart, Heather Matarazzo, Bijou Phillips and Richard Burgi, while Jay Hernandez briefly reprises his role from the first film. It was produced by Mike Fleiss, Roth, and Chris Briggs, with Boaz Yakin, Scott Spiegel, and Quentin Tarantino serving as executive producers. The plot follows three American female art students in Rome who are directed to a Slovak village where they are eventually kidnapped and taken to a facility in which rich clients pay to torture and kill other people.

After the significant box office receipts of Hostel, Roth conceived a sequel set directly after the events of the first film, opting to include three female protagonists to "up the ante." Filming took place in the fall of 2006 in Prague at Barrandov Studios, with additional photography occurring in Iceland and Slovakia.

Banned from theatrical release in several countries, Hostel: Part II had its world premiere at the Museum of the Moving Image in New York City on June 6, 2007, and was released theatrically in the United States two days later, on June 8. The film earned less than its predecessor at the box office, grossing $17 million in the United States by the end of its theatrical run, whereas the original made $19 million in its opening weekend alone. Prior to its theatrical release, a workprint of the film leaked on the Internet, and one publication at the time claimed it was the "most pirated film ever", which Roth suggested was a factor in the film's box office returns.