Lucius Cassius Longinus

Lucius Cassius Longinus may refer to:

Romans

 * Lucius Cassius Longinus (consul 30)
 * Lucius Cassius Longinus (proconsul 48 BC)
 * Lucius Cassius Longinus (praetor 66 BC), and part of the Second Catilinarian conspiracy
 * Lucius Cassius Longinus (tribune 105 BC)
 * Lucius Cassius Longinus (consul 107 BC)
 * Lucius Cassius Longinus Ravilla, a Roman consul in 127 BC