'Thickfreakness' was the second album by American rock duo The Black Keys, originally released in 2003. It is their debut release for the Fat Possum record label.

'Thickfreakness' continued The Black Keys' tradition of raw, heavy blues-influenced garage rock. Songs such as "Set You Free" won the pair some mainstream success as being featured in the soundtrack of the 2003 film 'School of Rock.'