Gellius Egnatius (died 295 BC) was the leader of the Samnites during the Third Samnite War, which broke out in 298 BC. By the end of the second campaign the Samnites appeared completely defeated, however in the following year Gellius Egnatius marched into Etruria, and roused the Etruscans to a close co-operation against Rome. This had the effect of withdrawing Roman troops from Samnium for a period of time; but the forces of the confederates were defeated by the combined armies of consuls Lucius Volumnius Flamma Violens and Appius Claudius Caecus.