Claudius Lysias is a figure mentioned in the New Testament book of the Acts of the Apostles. According to Acts 21:31-24:22, Lysias was a Roman Tribune and the commander (chiliarch) of the Roman garrison ("cohort" Acts 21:31) in Jerusalem.
Read more about Claudius Lysias: Claudius Lysias, The Tribune, Tribune of A Jerusalem Cohort, Claudius Lysias in The New Testament, Roman Citizenship