| Other Names | ALOL |
| Group Members | Robert MeadowsRobert CarpenterDouglas SabolickMike SabolickJustin Crouse |
| Genre | Metalcore |
| Origin | Philadelphia, Pennsylvania |
| Year(s) Active | 1999 — present |
| Labels | Ferret MusicDeathwish Inc.Robotic EmpireSeason of Mist (2011-present) |
A Life Once Lost is an American metalcore band formed in 1999 in a suburb of Philadelphia, Pennsylvania. After a string of releases on Robotic Empire and Deathwish Inc., A Life Once Lost released their successful album, Hunter on Ferret Music in 2005. The group supported the release by touring with groups such as Throwdown, As I Lay Dying, Lamb of God, Clutch, Opeth, Strapping Young Lad, and took Part in the Ozzfest 2006.