Our Gangs Dark Oath is the debut studio album released by post-hardcore band Aiden on June 1, 2004. Originally, the album was only available in North America, but it was recently re-released in Europe and again by Victory Records.

Aiden was an American horror punk band from Seattle, Washington that formed in the spring of 2003. They achieved underground success during the mid to late 2000s with their classic lineup, featuring vocalist William Francis, guitarists Angel Ibarra and Jake Wambold, bassist Nick Wiggins, and drummer Jake Davison.