Arvis (アルヴィス, Alvis in the Japanese version) is an antagonist of Fire Emblem: Genealogy of the Holy War.
Initially posing as an ally to Sigurd, he is secretly conspiring with Langobalt and Reptor to secure power over the nations of Jugdral, only to turn on all three lords one by one after they served their purpose to his plan. After the death of King Azmur, he marries Deirdre and is appointed Emperor of Grannvale. He is the son of Duke Victor of Velthomer and Cigyun, therefore the descendant of Fjalar on his father's side and Saint Maera on his mother's side. He is largely manipulated by Manfroy because he has minor Loptyr blood, making him the key to Manfroy's dark ambitions.