Lucius Minucius Basilus (died 43 BC) was a military commander and politician of the late Roman Republic, a trusted associate of Julius Caesar, who later participated in Caesar's assassination. It was to Basilus that Cicero wrote his first excited note after hearing of the successful assassination of Caesar. In the notes to Cicero's Selected Letters, Basilus is described: L. Basilus, a military leader and praetor who was denied a provincial command, was insulted that Caesar tried to placate him with money, causing him to join the conspiracy.