Lucius Quinctius Flamininus (died 170 BC) was a Roman politician and general who served as consul in 192 BC alongside Gnaeus Domitius Ahenobarbus. He was eventually expelled from the Senate by Cato the Elder.
A member of the patrician gens Quinctia, Lucius Quinctius Flamininus was the brother of Titus Quinctius Flamininus. He was elected Curule aedile in 201 BC, and in 199 BC, he served as Praetor urbanus. In the following year (198 BC), his praetorial imperium was prorogued by the Senate, initially to take on the task of allocating land in Italy for veterans who had served in Hispania. However, his brother Titus ensured that he was given a propraetorial command in charge of a fleet around Greece, and made responsible for securing the Italian coastal regions during the Second Macedonian War.
Flamininus initially sailed to Corcyra, and having the fleet handed over to him by his predecessor Lucius Apustius near the island of Zama, he travelled slowly from Cape Maleas to Piraeus, to join the ships which had been stationed there for the protection of Athens. Soon after he was joined by the allied fleets of Attalus I of Pergamon and Rhodes, and Flamininus used them in besieging Eretria, which was occupied by Macedonian forces. He eventually took the town during a night-time assault, during which the citizens surrendered. Flamininus came away with a large collection of art works as his share of the booty after the fall of Eretria. Word of his victory quickly spread, and Carystus surrendered to him without Flamininus having to lift a finger against it.