Officium may refer to :

• The Divinum Officium is the official set of daily prayers prescribed by the Roman Catholic Church to be recited at the canonical hours by the clergy, religious orders, and laity.
• The Sanctum Officium is the department in the Roman Curia which oversees Catholic doctrine.
• Officium is a Latin word with various meanings in Ancient Rome, including "service", "(sense of) duty", "courtesy", "ceremony" and the like.
• Officium Defunctorum is a musical setting of the Office of the Dead composed by the Spanish Renaissance composer, Tomás Luis de Victoria in 1603.
• Officium Triste is a Doom metal band from Rotterdam, The Netherlands.
• Officium (album) an album by Norwegian saxophonist Jan Garbarek featuring the Hilliard Ensemble

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