Opus Pistorum is a novel by Henry Miller

Opus Dei (God's work) is a Roman Catholic organization founded in 1928, which emphasizes the Catholic belief that everyone is called to be a saint and that ordinary life is a path to sanctity

Opus is a Latin word for work. The plural of opus is opera. It is used in many fields, notably in architecture and in music.

Opus (microkernel) was a microkernel developed at Apple and later Taligent as the base for the Pink operating system

In music, pieces of music by composers are given opus numbers, which generally run in order of publication. Unpublished compositions often are given WoO numbers (Werk ohne Opuszahl, German for work without opus number).

Magnum opus (or Opus magnum) refers to the best, most popular, or most renowned achievement of an author, artist, or composer. Magnum is Latin for great

Opus alexandrinum

Directory Opus is a file manager originally for the Amiga computer and now for Microsoft Windows

Opus (band) is an Austrian pop-rock group

Opus is the name of an Australian magazine produced by Newcastle University Students' Association

Opus College of Business is the business school within University of St. Thomas (Minnesota)

Opus-CBCS is a Bulletin Board (Computer Based Conversation System)

Opus quadratum

Opus International Group PLC is the corporate holding company for several engineering and consulting companies operating under the "Opus" brand name in several countries

Opus reticulatum (also called Opus certum)

Opus bus is a model made by the Optima Bus Corporation

Opus caementicium

Opus, Greece is an ancient Greek city of Eastern Locris, on the coast of mainland Greece across from Euboea

Opus spicatum

Opus testaceum (also called Opus latericium)

Opus incertum

Opus vittatum

Opus One

Opus (comic strip) is a comic strip by Berkeley Breathed starring Opus the Penguin

Opus is a Goan restaurant in Bangalore,India