Cinna was a cognomen that distinguished a patrician branch of the gens Cornelia, particularly in the late Roman Republic.
Prominent members of this family include:
Lucius Cornelius Cinna, consul four consecutive times 87–84 BC, a popularist leader allied with Gaius Marius against Sulla, and at the time of his death the father-in-law of Julius Caesar.
Cornelia, the wife of Julius Caesar, and mother of his only legitimate child.
Lucius Cornelius Cinna (suffect consul), the son of Lucius Cornelius Cinna and a praetor; he was a conspirator against Caesar.
Helvius Cinna, a poet murdered for having the same name as the assassin Cinna during the riots following Caesar's death.
Gnaeus Cornelius Cinna Magnus, a conspirator against Augustus Caesar in AD 4, and the subject of Corneille's tragedy Cinna