SouthernUnderground is the second studio album by American hip hop trio CunninLynguists.

Production was handled by member Kno, who also served as executive producer, Domingo, Freshchest Prose and RJD2.

It features guest appearances from Cashmere The PRO, Masta Ace, Supastition and Tonedeff.

As well as resident vocalist Deacon the Villain and DJ/vocalist Kno, the group employed Mr. SOS to accompany on vocals for much of the album.

It also has some political songs, such as "Dying Nation", "War" and "Appreciation", which takes a somber, storytelling approach to the September 11 attacks.