Marcus Antonius Felix (Felix in Greek: ο Φηλιξ, born between 5/10-?) was the Roman procurator of Iudaea Province 52-58, in succession to Ventidius Cumanus.

Felix was the younger brother of the Greek freedman Marcus Antonius Pallas. Pallas served as a secretary of the treasury during the reign of the Emperor Claudius. Felix was a Greek freedman either of Claudius, according to which theory Josephus (Antiq. xx. 7) calls him Claudius Felix, or for Claudius's mother Antonia Minor, a daughter of Triumvir Mark Antony to Octavia Minor and niece of Emperor Augustus. According to Tacitus, Pallas and Felix descended from the Greek Kings of Arcadia.

Felix’s cruelty and licentiousness, coupled with his accessibility to bribes (see Book of Acts 24:26), led to a great increase of crime in Judaea. The period of his rule was marked by internal feuds and disturbances, which he put down with severity.

After Paul the Apostle was arrested in Jerusalem and rescued from a plot against his life, the local Roman chiliarch Claudius Lysias transferred him to Caesarea, where he stood trial before Felix. On at least one further occasion Felix and his wife Drusilla heard Paul discourse, and later on frequently sent for Paul and talked with him (Acts 24:24-26). When Felix was succeeded as procurator, having already detained Paul for two years, he left him imprisoned as a favor to the Jews (Acts 24:27).