Lucius Marcius Philippus was a Roman politician who was elected suffect consul in 38 BC.

[2] In 49 BC he was elected as Plebeian Tribune, where he vetoed the proposal to send Faustus Sulla, Pompey’s son-in-law, as propraetor to Mauretania, to persuade kings Bocchus II and Bogud to side with Pompey and abandon Julius Caesar.

[4] With his father's marriage to Atia, he became step-brother to Gaius Octavius, Julius Caesar's heir.

[6] After serving there for two years, he returned to Rome, where he was awarded a triumph which he celebrated on April 27, 33 BC for his actions while governor.

[9] Philippus married Atia, daughter of Julia Minor and Marcus Atius Balbus and maternal aunt of Augustus.