U2 3D is a 2008 American-produced 3D concert film featuring rock band U2 performing during the Vertigo Tour in 2006. The film contains performances of 14 songs, including tracks from How to Dismantle an Atomic Bomb (2004), the album supported by the tour. The concert footage includes political and social statements made during the shows. It is the band's second feature film, following their 1988 rockumentary Rattle and Hum. Among several cinematic firsts, U2 3D was the first live-action digital 3D film.

The project was created to experiment with a new type of 3D film technology pioneered by producer Steve Schklair. After considering shooting American football games in 3D, Schklair's company 3ality Digital decided to create a concert film with U2. The band were hesitant to participate, but agreed to the project mainly as a technological experiment rather than a profit-making venture. Although set in Buenos Aires, U2 3D was shot at seven concerts across Latin America, and two in Australia. The film's complex setup involved shooting with up to 18 3D cameras simultaneously and capturing the footage digitally.