Omen is the third EP by American metalcore band Within the Ruins. It was released on May 24, 2011 through Victory Records. It features two new songs and two covers. Omen would be the band's last release featuring Mike Beaujean on bass and Jay Van Schelt on guitar. Additionally, it would be the last release to feature two guitarists, with Cocchi taking over sole guitar duties in the third studio album Elite. It would also be the band's last release for Victory Records, as they would go on to sign with eOne Music and Good Fight Music in November 2012.

Within the Ruins is an American metalcore band formed in Westfield, Massachusetts in 2003. The group currently consists of guitarist Joe Cocchi, drummer Kevin McGuill, bassist Paolo Galang, and vocalist Steve Tinnon. They are currently signed to eOne Music and Good Fight Music. The band has released six studio albums and three EPs.