Decius (disambiguation)

Decius was a 3rd-century Roman emperor.

Decius may also refer to:


 * Decia gens for several other Ancient Romans
 * Decius (consul 529), Flavius Decius (fl. 529-546), politician of the Eastern Roman Empire
 * Decius (Exarch), first Exarch of Ravenna 584–585
 * Decius Wadsworth (1768-1821), Colonel in the Ordnance Corps of the United States Army who, in 1817, created Wadsworth's cipher
 * Filippo Decio (1454–1535), Italian jurist
 * Nikolaus Decius (c.1485–1541), German minister and hymn writer
 * Tom Cross (computer security), American technology expert who works under the pseudonym Decius, from Decius Wadsworth
 * A misspelling of Decimus Junius Brutus Albinus as "Decius Brutus" in William Shakespeare's Julius Caesar