Oppressed By The Line
Artist with the following albums: "The Cause of Color", "Soft Focus", "Kiku"

Oppressed Logic
Artist with the following albums: "The Past Ain't Gonna Change", "Ain't A Damn Thing Changed", "It's Harassment"

Oppression
Artist with "State of War" album

Oppressor
Artist with the following albums: "Solstice of Oppression", "EUROPEAN OPPRESSION:LIVE-AS BLOOD FLOWS", "Inside", etc...

Opprobrium
Artist with the following albums: "Discerning Forces", "Mandatory Evac", "Serpent Temptation", etc...