Agent 51 is an American punk rock band formed in Poway, CA in 1995. A central part of the thriving San Diego music scene, the band has shared the stage with blink-182, Unwritten Law, Rocket from The Crypt, POD and others.

The band has released three full length albums: Red Alert on Alphabet Records, Just Keep Runnin' on SH/Adeline Records and The Red & The Black on Surfdog Records. After catching the attention of Green Day's Billie Joe Armstrong, He re-released Just Keep Runnin' on his Adeline Records imprint, along with releases from AFI, Pinhead Gunpowder and more.

Agent 51 received regular rotation airplay on San Diego's 91X, KBZT, and KFSD as well as placements on MTV's Real World and The CW. They have won numerous San Diego Music Awards, played several Warped Tour dates and were included on the official Warped Tour Compilation.