Opus (: opera) is a Latin word meaning "Work (disambiguation), work". Italian equivalents are ''opera'' (singular) and ''opere'' (plural). Opus or OPUS may refer to:

Arts and entertainment

Music

* Opus number, (abbr. Op.) specifying order of (usually) publication, and hence applied to collections as well as individual compositions * Opus Records, a Slovak record label

Bands

* Opus (Austrian band), an Austrian pop-rock group * Opus (Yugoslav band), a former Yugoslav progressive rock group * Pur (band), a German pop group originally known as "Opus"

Albums

* Opus (Opus album), ''Opus'' (Opus album), 1987 album by Austrian band Opus * Opus (Schiller album), ''Opus'' (Schiller album), 2013 album by German music project Schiller * ''Opus'', a 2014 album by Jane Badler * Opus (Eric Prydz album), ''Opus'' (Eric Prydz album), 2016 album by the electronic artist Eric Prydz ** Opus (Eric Prydz song), "Opus" (Eric Prydz song), song from the eponymous album. * ''Opus'', a 2007 compilation album by Mr. Sam * Opus 1 (album), ''Opus 1'' (album), 1975 album by the Yugoslav band Opus * Opus (Marc Anthony album), ''Opus'' (Marc Anthony album), 2019 album by Puerto Rican singer Marc Anthony

Songs

* "Opus", a song by Black Country, New Road from the 2022 album ''Ants from Up There''

Publications

* Opus (comic strip), ''Opus'' (comic strip), by Berkeley Breathed ** Opus the Penguin, the title character of the strip, originally from ''Bloom County'' * Opus (manga), ''Opus'' (manga), a manga by Satoshi Kon * Opus (University of Newcastle magazine), ''Opus'' (University of Newcastle magazine), a student newspaper of the University of Newcastle, Australia * Opus (classical record magazine), ''Opus'' (classical record magazine), an American magazine

Other arts

* Opus (film), ''Opus'' (film), an upcoming film starring John Malkovich * Opus (play), ''Opus'' (play), a 2006 play by Michael Hollinger * Work of art (''L. opus'') *''Magnum opus'' or masterwork

Computing

* Opus (audio format), an audio coding format * Opus (microkernel), an operating system kernel * Opus-CBCS, a computer bulletin board system * Directory Opus, a file manager program * OPUS (software), digital repository software

Organisations

* Opus Group Berhad, a consortium of several different companies operating under the Opus brand name * Opus Energy, an electricity and gas supplier based in the United Kingdom * Opus College of Business, United States

Transportation

* OPUS card, a card used for public transit in Quebec, Canada * Opus, a bus manufactured by Optima Bus Corporation

Other uses

* Opus (mythology), a son of Zeus * Opus, Greece, a city in ancient Locris, Greece * Opus (Elis), a town in ancient Elis, Greece * Opus (architecture), ''Opus'' (architecture), a series of constructing methods in use in Ancient Rome * ''Opus pontis'', cost of paying for bridge work in Ancient Rome and the Roman Empire * OPUS (chromatography), a line of chromatography columns manufactured by Repligen Corporation * OPUS (psychiatry), a Danish early intervention program for people with schizophrenia spectrum disorders