Rēgŭlus, i, m., a Roman surname.
I Of the Atilii, among whom was the celebrated consul M. Atilius Regulus, who was taken prisoner by the Carthaginians in the first Punic war, Cic. Off. 3, 26, 99; id. Fin. 2, 20, 65; Sen. Prov. 4, 5; cf. Gell. 6, 4, 1 sqq.; Sen. Prov. 3, 4 and 9 sqq.—
II Of the Livineii, Auct. B. Afr. 89, 3; Cic. Fam. 13, 60, 1; id. Att. 3, 17, 1.—
III Another, called by Modestus omnium bipedum nequissimus, Plin. Ep. 1, 5, 14.—
IV Aquilius Regulus, Tac. A. 3, 42.