Xystus

Xystus has several meanings:

• Xystus, a Greek architectural term denoting the covered portico of a gymnasium
• Xystus, another spelling for the Roman name Sixtus
• Pope Xystus I
• Pope Xystus II
• Pope Xystus III
• Pope Xystus IV
• Xystus, a Greek student of Pythagoreanism, author of the Sentences of Sextus
• Xystus, a taxonomic synonym of Alloxysta, a genus of wasps
• Xystus (weevil), a genus of beetles in the tribe Apostasimerini