Exordium may refer to:
* ''Exordium'', a science fiction book series written by Sherwood Smith and Dave Trowbridge
* Exordium (EP), ''Exordium'' (EP), by Dutch symphonic metal band After Forever.
* Exordium (rhetoric), the introductory section of a discourse in Western classical rhetoric
* Exordium clause, the first paragraph or sentence in a (last) will and testament
* "Exordium: The Beginning Of a Web", opening section of ''Delusion of the Fury'' by Harry Partch
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