Pain (typeset as PAIN) is a musical project from Sweden that mix Metal with influences from Electronic metal and Techno. The project started out as a hobby project for front man Peter Tägtgren, whose idea was to fuse metal with 1980's-inspired electro-industrial and techno influences. Tägtgren, who is also the vocalist/guitarist of Hypocrisy and producer of his own The Abyss studios, is the only current member. He has mentioned his influence to start the project was Fear Factory's 1992 album Soul of a New Machine. Pain's self titled debut was released in 1997, and since then Pain has released five more albums and a DVD. Starting with their second, all of Pain's albums have made the Swedish charts, thanks in large part to hit singles such as "End of the Line", "Shut Your Mouth", and "Same Old Song". In early February 2006, blabbermouth.net reported that Pain had signed with Roadrunner Records. Currently, Pain is under the Nuclear Blast Records banner.

At the moment Pain is on tour as a supporting performer for the Finnish symphonic power metal band Nightwish. During this tour singer Peter Tägtgren, drummer David Wallin and bassist Johan Husgafvel were assaulted by a gang in Leipzig. Peter received 10 stitches in his face, David suffered a concussion and stitches to his head, Johan had his nose broken.

Pain supported Nightwish on the second half of their Dark Passion Play World Tour, along with Finnish pop rock band Indica, beginning with the first show in London, UK on 11 March 2009.

Pain released their seventh album, You Only Live Twice, on 3 June 2011 via Nuclear Blast.