(Greacized Γάϊος Νόρβανος Φλάκκος, Josephus, Ant. 16:6, 6), son of a somewhat notable consular Roman of the same name (see Smith's Dict, of Class. Biogr. s.v.), was consul with Octavianus in A.D. 51 (Tacitus, Ann. i, 54; Sueton. Vit. 3). While proconsul of Asia Minor, he promulgated the emperors decrees to the provincial magistrates in favor of the Jews (Joseph. Ant. 16:6, 3-6); and when praeses of Syria he befriended Herod Agrippa till influenced by Aristobulus (ib. 18:6, 2-3).