New Line Productions, Inc., doing business as New Line Cinema, is an American film and television production company that is a subsidiary of Warner Bros. Motion Picture Group, a division of the "Big Five" film studio Warner Bros., which, in turn, is owned by Warner Bros. Discovery (WBD). It is headquartered in Burbank, California.

The studio was founded on June 18, 1967 by Robert Shaye in New York City, and has been operating as a unit of Warner Bros. Pictures since 2008. After becoming a film studio after acquired by Turner Broadcasting System in 1994, Turner later merged with Time Warner Entertainment (later known as WarnerMedia from 2018 to 2022, and Warner Bros. Discovery since 2022) in 1996, and New Line was merged with Warner Bros. Pictures in 2008.

New Line Cinema is currently one of the four live-action film studios within the Warner Bros. Motion Picture Group, the others being Warner Bros. Pictures, Castle Rock Entertainment, and a minority stake in Spyglass Media Group. The studio has been nicknamed "The House that Freddy Built" due to the success of the Nightmare on Elm Street film series. However, its most successful property was a film adaptation of The Lord of the Rings trilogy by J. R. R. Tolkien with considerable commercial success and numerous Academy Awards.