Earth A.D./Wolfs Blood is the second full-length album by American horror punk band Misfits. It is the last album released to feature founding member and lead vocalist, Glenn Danzig. Danzig released it on his Plan 9 label in December 1983, two months after he played his last concert with the band. It was noticeably harder and faster than their previous releases, showing more of a hardcore punk sound. Since its release it has often been referred to as simply "Earth A.D." amongst fans. The iTunes version of the album is titled as Earth A.D. / Die, Die My Darling.
Originally released as a 9-song LP, it was later issued with the three tracks of the "Die, Die My Darling" single incorporated into the track listing: "Die, Die My Darling", "Mommy, Can I Go Out and Kill Tonight?" and "We Bite".
Glenn Danzig has said that the tracks "Bloodfeast" and "Death Comes Ripping" were originally intended for Samhain's first release, but were added to what would be the Misfits' final record in a last-ditch effort to save the band.