Lucius Cincinnatus may refer to:
Lucius Quinctius Cincinnatus, ancient Roman politician of the 5th and 6th centuries BC Lucius Quintus Cincinnatus Lamar I (1797–1834), father of Lucius Quintus Cincinnatus Lamar (II) and a Georgia jurist Lucius Quintus Cincinnatus Lamar (1825–1893), U.S. Supreme Court Associate Justice