Chelsea Grin is an American deathcore band from Salt Lake City, Utah. Formed in 2007, the group have released two EPs and seven full-length albums. Since 2018, no founding members remain in the band. Despite not being in the original lineup, bassist David Flinn has been the only constant member on all the group's studio albums.

Deathcore is an extreme metal subgenre that combines death metal with metalcore. The genre consists of death metal guitar riffs, blast beats, and metalcore breakdowns. While there are some precursors to the concept of death metal fused with metalcore/hardcore elements seen in the 1990s, deathcore itself emerged in the early 2000s and gained prominence beginning in the mid-2000s within the southwestern United States, especially Arizona and inland southern California, which are home to many notable bands and various festivals.