Magnum opus, an artist's greatest workOpus (band), an Austrian pop-rock groupOpus (progressive rock band), a former Yugoslav groupOpus, a Slovakian record labelOpus number, a method of identifying compositionsOpus III, an English electronic pop groupOpus, an album by Mr. SamOpus Dei, an album by LaibachOpus Eponymous, an album by Ghost
Publishing
Opus (comic strip)Opus the Penguin, title character of the stripOpus, student newspaper of the University of Newcastle, AustraliaOpus (1984–1988), magazine of classical music record reviewsKraken Opus, publisher of premium, outsized editions on subjects including sports teams and celebrities
Computing and technology
Opus (content management system)Opus (microkernel)Opus (codec)OPUS card, a card used in Quebecker public transitOpus-CBCS, a computer bulletin board systemDirectory Opus, a file manager program
Other uses
Opus (mythology)Opus (play)Opus, GreeceOpus College of BusinessOpus Group Berhad, a consortium of several different companiesOpus, a bus manufactured by Optima Bus Corporation
