"Avalanche" is a song by British rock band Bring Me the Horizon. Produced by keyboardist Jordan Fish and vocalist Oliver Sykes, it was featured on the band's 2015 fifth studio album That's the Spirit. The song was also released as the sixth single from the album on 27 June 2016, reaching number 97 on the UK Singles Chart and number seven on the UK Rock & Metal Singles Chart.

According to Bring Me the Horizon vocalist Oliver Sykes, "Avalanche" is the band's attempt at creating "a stadium-sounding anthem" in the vein of bands such as U2. Keyboardist Jordan Fish echoed the influence of 1980s "arena rock" on the song, which Sykes claimed was not intended merely for the purposes of "getting big".Rock Sound writer Andy Biddulph described the song as featuring "rumbling, widescreen rock" and "powerful lyrics", compared its style to that of Linkin Park, particularly in terms of its "huge, open chords and Oli's raking vocal performance". David Renshaw of the NME noted the song's "singalong choruses and driving, expansive production", comparing it in these respects to "Throne".

Lyrically, "Avalanche" is a song about attention deficit hyperactivity disorder (ADHD), with which Sykes was diagnosed prior to the release of That's the Spirit. Identifying the diagnosis as a factor in his recovery from drug addiction, the vocalist noted the lyric "Cut me open and tell me what's inside" as indicative of his headspace at the time of writing the song. In a review of the album for the Alternative Press, Tom Bryant proposed that the lyrics and the music juxtapose with one another, describing the song as "melancholy, epic and uplifting all at once: "I feel like suicide," Sykes sings, but the swelling synths behind him seem to say, "Oh, cheer up.""Fuse's Maria Sherman noted its "self-deprecating chorus".

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