Roger Öjersson is a Swedish musician, known as former bassist and co-lead vocalist of Kamchatka and current guitarist of Katatonia and Tiamat.

[1] In his mid teens he started the band Vildsvin together with Fredrik Thomander and Peter Månsson, where he was the lead guitarist.

In 2001 he started the band Kamchatka together with guitarist Thomas "Juneor" Andersson and drummer Tobias Strandvik, Ojersson performed vocals and bass.

[2] In 2010 he joined Tiamat as lead guitarist,[3] touring with the band and playing guitar, keyboards and mandolin on their 2012 album, The Scarred People.

[5] He has remained a member of Katatonia since,[6] playing on their albums The Fall of Hearts (2016), City Burials (2020) and Sky Void of Stars (2023).