Eonian is the ninth studio album by Norwegian symphonic black metal band Dimmu Borgir, which was released on 4 May 2018.

[3] In April, Dimmu Borgir announced limited tour dates for the month of August 2018 with the band playing shows in Las Vegas, Chicago, Toronto, and New York City.

"[10] ScreamingSteelUS of Metal Storm gave the album a 6.4/10 stating that "this is just Nightwish with Emperor Palpatine on vocals" while also finding the choirs to be irritating.

gave the album a 6/10 citing that "although frontman Shagrath has one of the most recognizable voices in metal, Dimmu haven't replaced the vocals of ICS Vortex, which were the highlight of their best releases".

[8] A more positive review came from Dom Lawson of Metal Hammer who gave Eonian four out of five stars noting that the songs on the album are complex and memorable.