The Roman god of the underworld, the former ninth planet, a cartoon dog...but not a baby.

Any boy with this name, a synonym for power via the Greek mythology figure, better be strong of body, and of psyche.

Orcus is the Roman equivalent of the Greek Hades, god of the underworld. His name is ultimately derived from the Greek word hórkos, meaning "oath,"

Only if you're hoping for your son to become a wine-besotted poet. To the ancient Romans, Bacchus was the god of agriculture, wine and fertility.

Vulcan was the Roman god of fire (from which, volcano) and metalworking, but this name is now more familiar as the pointy-eared humanoids on "Star Trek," represented by Mr. Spock.

Common Roman name mentioned in the Bible that has a crisply attractive sound.

Tiberinus was the god of the Tiber in Roman mythology and appears as a character in Virgil's Aeneid. It's related to the name Tiberius, that of an Ancient Roman emperor. Tiberius may be the better choice between the two, if only because it's more familiar.

Liber was the name of the Roman god of wine, freedom, and male fertility. It is etymologically linked to the word "libation," referring to the ritual practice of sharing drinks.

In Roman mythology, Silvanus was the god of the forests. He protected farmers and fields and was credited with developing a system for marking field boundaries.

Quirinus is the Roman god of thunder and lightning, believed by some to be the Sabine god of war. While this is an intriguing and distinctive classic name, it also might provoke some middle school teasing.