One Second is the sixth studio album released by British metal band Paradise Lost. The album marks the group's transition from a gothic metal act to a more electronic direction. It is the bestselling record of their career and enabled the band to sign with the German branch of major label EMI. One Second is Paradise Lost's first album recorded in digital format.

A 20th Anniversary Edition was released on 14 July 2017, which contained the original album remastered by Jaime Gomez Arellano and an additional disc with audio from a Paradise Lost's concert at Shepherd's Bush Empire on 26 January 1998. The concert was part of the tour in support of the One Second album release. The concert was previously released as part of the Evolve DVD, and is released on CD for the first time.

In 2020, it was named one of the 20 best metal albums of 1997 by Metal Hammer magazine.