The Twilight Saga: Breaking Dawn – Part 1 (or simply Breaking Dawn – Part 1) is a 2011 American romantic fantasy film directed by Bill Condon from a screenplay by Melissa Rosenberg, based on the 2008 novel Breaking Dawn by Stephenie Meyer. It is the sequel to The Twilight Saga: Eclipse (2010) and the fourth installment in The Twilight Saga film series. The film stars Kristen Stewart, Robert Pattinson, and Taylor Lautner, reprising their roles as Bella Swan, Edward Cullen, and Jacob Black, respectively. In the film, Bella and Edward marry and become pregnant with a half-human & half- vampire child, which causes a threat to the town of Seattle, including the werewolves, and the Cullens to become a target.

Summit Entertainment announced that Breaking Dawn would be adapted into a two-part film on June 10, 2010. Principal photography for both parts began on November 1, 2010, and wrapped on April 22, 2011. The first part was shot in Rio de Janeiro, Brazil; Baton Rouge, Louisiana; and Vancouver, Canada.

The Twilight Saga: Breaking Dawn – Part 1 premiered at the Rome Film Festival on October 30, 2011, and was released in the United States on November 18. The film received generally negative reviews from critics, but grossed $712.2 million worldwide, becoming the fourth-highest-grossing film of 2011.

A sequel, Breaking Dawn – Part 2, was released in 2012.