The Chalyzians or Khalyzians or Khalis or Khwalis (Arabic: Khwarezmian, Byzantine Greek: Χαλίσιοι, Khalisioi, Magyar: Káliz) were a people mentioned by the 12th-century Byzantine historian John Kinnamos. Kinnamos in his epitome twice mentions Khalisioi in the Hungarian army. He first describes them as practising Mosaic law; though whether they were actually Jews is unclear because other editions state that they were Muslims. They were said to have fought against the Byzantine Empire as allies of the tribes of Dalmatia in 1154, during Manuel Comnenus's campaign in the Balkans.