As I Lay Dying is an American metalcore band from San Diego, California. Formed in 2000 by vocalist Tim Lambesis, the band's first full lineup (including Lambesis' Point of Recognition bandmate Jordan Mancino) was completed in 2001. The band has released seven albums, one split album, and two compilation albums.

As I Lay Dying's fourth studio album An Ocean Between Us peaked at No. 8 on the Billboard 200, and No. 1 on the Top Rock chart. The band has performed at festivals such as Wacken Open Air, With Full Force, Soundwave Festival, Warped Tour, Bloodstock Open Air and Taste of Chaos. In 2007, As I Lay Dying won the "Ultimate Metal God" award from MTV2 at the first annual "All That Rocks" special; was named "Artist of the Year" at the San Diego Music Awards in 2005, 2007 and 2008; and was nominated for a 2008 Grammy Award for the song "Nothing Left". Their fifth studio album The Powerless Rise was written over a three-year period, and was released in May 2010 to widespread critical acclaim. Their last studio album before their hiatus, Awakened, was released on September 25, 2012.

The band went on an indefinite hiatus in 2014 when Lambesis was convicted and sentenced to six years in prison for soliciting the murder of his estranged wife. The remaining members formed Wovenwar with vocalist Shane Blay.

In 2018, Lambesis reunited with Hipa, Sgrosso, Mancino and Gilbert. On June 8, 2018, the band released the song "My Own Grave", their first recording in six years. They released their seventh studio album, Shaped by Fire, on September 20, 2019. The band's lineup would crumble in the years following the album's release; Hipa departed the band in 2020, followed by Gilbert and Mancino in 2022, just over a month between each other.