Saccus

Saccus may refer to:
 * Saccus, Roman cognomen, see List of Roman cognomina
 * Saccus, a genus of plants in the family Moraceae, synonym of Artocarpus
 * Saccus, in anatomy:
 * Saccus endolymphaticus
 * Saccus lacrimalis
 * Saccus caecus caudodorsalis
 * Saccus caecus caudoventralis
 * Saccus conjunctivae
 * Saccus cranialis
 * Saccus dorsalis


 * Saccus, in entomology:
 * The saccus is an anatomical structure of male lepidoptera genitalia, being an anterior extension of the vinculum