Back in Black is the seventh studio album by Australian rock band AC/DC. Released on 25 July 1980, is the band's first album to feature lead singer Brian Johnson, following the death of previous lead singer Bon Scott.

After the commercial breakthrough of their 1979 album Highway to Hell, AC/DC was planning to record a follow-up, but in February 1980, Scott died from alcohol poisoning after a drinking binge. Instead of disbanding, they decided to continue on and recruited Johnson, who was previously vocalist for Geordie.

The album's all-black cover was designed as a "sign of mourning" for Scott.

As their sixth international studio release, Back in Black was an unprecedented success. It has sold an estimated 50 million copies worldwide. It is one of the best-selling albums in music history. The band supported the album with a yearlong world tour, cementing them among the most popular music acts of the early 1980s. The album also received positive critical reception during its initial release, and it has since been included on numerous lists of "greatest" albums. Since its original release, the album has been reissued and remastered multiple times, most recently for digital distribution. On 9 December 2019, it was certified 25x Platinum by the Recording Industry Association of America (RIAA).

In a retrospective piece on "Back in Black", Metal Hammer magazine hailed the song's riff as one of the greatest riffs ever and wrote, "There are rock songs that appeal to metal fans. And there are metal songs that appeal to rock fans. Then there is Back in Black – a rock and metal song that appeals to everybody, from dads to dudes, to little old ladies beating noisy kids over the heads with their sticks – and it all hangs on that monumental, no-nonsense, three-chord monster of a riff." Will Byers from The Guardian said "AC/DC's judicious use of space" in the song helped make it a "classic metal anthem".