Archspire is a Canadian technical death metal band from Vancouver. They have released four studio albums and are currently signed to Season of Mist.
The band was formed in 2007 as Defenestrated, but changed their name to Archspire in 2009.[3] Members were singer Oli Peters (Oliver Aleron), guitarists Tobi Morelli and Dean Lamb, Bassist Jaron Evil (Jaron Good) and drummer Spencer Prewett. Singer Shawn Haché was with the band briefly but left to join Mitochondrion.

The band was signed to Trendkill Recordings and, in April 2011, released their first album, All Shall Align. It was recorded between May and December 2010 working with producer Stuart McKillop at The Hive Studio in Calgary.

In early 2013, Jaron Evil suffered a stroke at age 31.He recovered and briefly returned to the band, but left permanently in late 2013. He was replaced by Clayton Harder.

Also in 2013, Archspire signed with Season of Mist,and recorded a second album with Stuart McKillop, at Vancouver's Rain City Recorders. On February 2, 2014, the band released a single from their upcoming album, "Lucid Collective Somnambulation", and in April released The Lucid Collective.

In January 2015 the band announced they were seeking a permanent bass player as a replacement for bassist Clayton Harder, who left to study jazz guitar at York University. They asked interested parties to record a video of themselves playing an Archspire song (they suggested "Deathless Ringing"). On January 12, 2016, the band announced that they had selected Jared Smith to become their full-time bassist, and posted Smith's playthrough video of "Lucid Collective Somnambulation".

The band announced their third album Relentless Mutation and a single, "Involuntary Doppelgänger", on July 5, 2017. The album was released on September 22, 2017. At the Juno Awards of 2018, the album received a nomination for Metal/Hard Music Album of the Year.