Ultimo Mondo Cannibale is the debut album by American deathgrind band Impetigo. It was released in 1990 and was a major influence in the grindcore and goregrind scene. It is one of the first albums to use sound segments from horror films as intros for their songs (Italian cannibal movie by Ruggero Deodato of the same name). Another of the first bands to use this technique is Spanish grindcore band Machetazo. The album's lyrical themes mainly pertain to gore, with many detailed descriptions of violence.
The cover had to be changed because it was too graphic and violent. The original cover, and most of the Impetigo artwork, was drawn by band frontman Stevo Dobbins.
Writing for AllMusic, John Book wrote, "This Illinois quartet mixes death metal, grindcore, and superfast playing and ended up with one of the sickest albums in heavy metal history. Intense, shocking and many times gross, sick, and too brutal for words, it is highly unusual and eclectic, but definitely not for everyone."
"Heart of Illinois" and "My Lai" are LP bonus tracks, "Bad Dreams" and "Who's Fucking Who?" cassette tape bonus tracks.