Damnesia is an album by the punk rock band Alkaline Trio, released July 12, 2011 through their label Heart & Skull, a joint venture with Epitaph Records. A primarily acoustic album, it consists of "a selection of beloved fan favorites selected from the group's extensive catalogue and presented in an intimate semi-unplugged format". The album also includes two new songs, "Olde English 800" and "I Remember a Rooftop", as well as a cover version of the Violent Femmes' "I Held Her in My Arms". A music video consisting of studio footage was released for the song "Clavicle", and the band has embarked a fifteenth-anniversary United States tour in support of the album.

Alkaline Trio is an American punk rock band from Chicago, Illinois. The band's current members are Matt Skiba, Dan Andriano, and Atom Willard (drums).