"Mantra" is a song by British rock band Bring Me the Horizon. Produced by the band's vocalist Oliver Sykes and keyboardist Jordan Fish, it is featured on the group's 2019 sixth studio album Amo. The track was released as the first single from the album on 21 August 2018, topping the UK Rock & Metal Singles Chart.
The music video for "Mantra" was released on 24 August 2018, three days after the song was first made available. According to music website Consequence of Sound, the video "depicts frontman Oli Sykes as a cult leader, as his followers hang on his every word". Revolver magazine's John Hill outlined that "The visuals in the video clash repeatedly, elements of video games, late-night infomercials, and church sermons all run on a closed loop next to each other for a vicious effect", describing it as "crazy". Similarly, Emmy Mack of Music Feeds dubbed the video "batshit crazy".