Dacus is a genus of tephritid or fruit flies in the family Tephritidae.

Dacus may also refer to:

• Adjectival form of Latin Dacia , ancient kingdom in Central and South-Eastern Europe
• Adjectival form of Latin Dacia (Denmark), medieval Latin name for Denmark or the Nordic region in general
• Dacus, Latinised name of the mediaeval English Denys family, of Danish origin
• Dacus (surname)

This disambiguation page lists articles associated with the title Dacus.
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