Decet may refer to:
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Decet (music)
In music, a decet—sometimes dectet, decimet, decimette, or even tentet—is a composition that requires ten musicians for a performance, or a musical group that consists of ten people. The corresponding German word is Dezett, the French is dixtu ...
, a composition which requires ten musicians for a performance
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Decet Romanum Pontificem
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(from Latin: "It Pleases the Roman Pontiff") is a papal bull issued on 3 January 1521 by Pope Leo X to effect the excommunication of German theologian Martin Luther and some of his colleagues—notably Andreas Karlstadt—for r ...
(1521), the papal bull excommunicating Martin Luther
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Romanum decet pontificem, a papal bull issued by Pope Innocent XII (1691—1700) on June 22, 1692, banning the office of Cardinal Nephew
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