World War III is the third studio album by the American rapper Mac, released on September 28, 1999, on No Limit Records.

It was produced by a wide range of producers, including Mac himself, Donald XL Robertson and Carlos Stephens.

World War III did significantly less well on the Billboard charts compared with his previous album, Shell Shocked.

This was his last album of original material and his last for No Limit as, shortly after its release, Mac was convicted of manslaughter.

Along with singles, a music video was released for "War Party" featuring Magic and D.I.G..