Caligula's Horse is an Australian progressive metal band from Brisbane, Queensland. The band was formed by Sam Vallen and Jim Grey in early 2011. The current lineup consists of lead vocalist Jim Grey, lead guitarist Sam Vallen, guitarist Adrian Goleby, bassist and vocalist Dale Prinsse and drummer Josh Griffin. Caligula's Horse achieved their first chart success with their 2015 album release Bloom, with it reaching number 16 on the Australian Albums ARIA Chart and number 75 on the overall album chart. The album also reached number 73 on the Australian iTunes chart on 21 October 2015.
Their first album, Moments from Ephemeral City (2011), and a follow up EP, Colossus (2011), were released independently before signing with Welkin Records and releasing their second album, The Tide, the Thief & River's End (2013). The band then signed with Inside Out Music for the release of their third album, Bloom (2015), and their fourth album In Contact (2017).
The band released their fifth album, Rise Radiant, on 22 May 2020.