Star Trek: First Contact is a 1996 American science fiction film directed by Jonathan Frakes in his feature film debut. It is the eighth movie of the Star Trek franchise, and the second starring the cast of the television series Star Trek: The Next Generation. In the film, the crew of the starship USS Enterprise-E travel back in time from the 24th century to the 21st century to stop the cybernetic Borg from conquering Earth by changing the past.

After the release of Star Trek Generations in 1994, Paramount Pictures tasked writers Brannon Braga and Ronald D. Moore with developing the next film in the series. Braga and Moore wanted to feature the Borg in the plot, while producer Rick Berman wanted a story involving time travel. The writers combined the two ideas; they initially set the film in Renaissance Italy, but changed the time period that the Borg corrupted to the mid-21st century, after fearing the Renaissance idea would feel kitschy. After two better-known directors turned down the job, cast member Jonathan Frakes was chosen to direct to make sure the task fell to someone who understood Star Trek.

The film's script required the creation of new starship designs, including a new USS Enterprise. Production designer Herman Zimmerman and illustrator John Eaves collaborated to make a sleeker ship than its predecessor. Principal photography began with weeks of location shooting in Arizona and California, before production moved to new sets for the ship-based scenes. The Borg were redesigned to appear as though they were converted into machine beings from the inside-out; the new makeup sessions took four times as long as their appearances on the television series. Effects company Industrial Light & Magic rushed to complete the film's special effects in less than five months. Traditional optical effects techniques were supplemented with computer-generated imagery. Jerry Goldsmith composed the film’s score.

Star Trek: First Contact was released on November 22, 1996, and was the highest-grossing film on its opening weekend. It grossed a worldwide total of $146 million. Critical reception was mostly positive; critics including Roger Ebert considered it to be one of the best Star Trek films. The Borg and the special effects were lauded, while characterization was less evenly received. Scholarly analysis of the film has focused on Captain Jean-Luc Picard's parallels to Herman Melville's Ahab and the nature of the Borg. First Contact was nominated for the Academy Award for Best Makeup, and won three Saturn Awards. It was followed by Star Trek: Insurrection in 1998.