a Roman knight, was one of the few companions whom Tiberius took with him when he retired from Rome to Capreae in A. D. 26. Six years afterwards, A. D. 32, Atticus fell a victim to the arts of Sejanus. (Tac. Ann. 4.58, 6.10.) He is supposed by Lipsius to be the same as the Atticus to whom two of Ovid's Epistles from Pontus (2.4, 7) are addressed.