Quintus Fabius Vibulanus, son of Marcus Fabius Vibulanus (consul 483 BC), was consul of the Roman Republic and one of the second set of decemviri.
According to Livy, Quintus was the only male to escape the slaughter of the gens Fabia at the Battle of the Cremera in 477 BC, since he was too young to be sent to war.
He was consul of the Roman Republic three times:
During his third consulate, he besieged Antium and helped the Tusculans to rescue their city, which was occupied by the Aequi. In the end, he attacked the Aequi fleeing from Tusculum, killing many of them near Mons Algidus.
In 450 BC, Appius Claudius named him one of the second set of decemviri, ten men given absolute authority in Rome while they compiled the Law of the Twelve Tables. Livy says that Fabius was easily corrupted by Appius and he went from being a very good man to a very wicked one.