Gaius Flaminius was Roman consul for 187 BC, together with Marcus Aemilius Lepidus. Flaminius was the son of Gaius Flaminius who was killed in the battle of Lake Trasimene.

In 210 BC Flaminius served as quaestor Scipio Africanus in Spain. In 196 BC he was curule aedile. During his aedileship he distributed large quantities of low priced grain amongst the people. Elected praetor in 193 BC he was given Hispania Citerior as his province where he carried on a successful war by besieging and capturing the wealthy town of Litabrum. Flaminius was elected consul in 187 BC. He and his colleague were given the task of fighting the Ligurians who had been raiding in Northern Italy. After having gained several battles against the Triniates and Apuani he re­duced them to submission and peace was restored in the north of Italy.