Names Categorized "monsters"

Cerberus m Greek Mythology (Latinized)
Latinized form of the Greek Κέρβερος (Kerberos), which possibly meant "spotted". In Greek myth this was the name of the three-headed dog that guarded the entrance to Hades.

Draco m Ancient Greek (Latinized)
From the Greek name Δράκων (Drakon), which meant "dragon, serpent". This was the name of a 7th-century BC Athenian legislator. This is also the name of a constellation in the northern sky.

Drakon m Ancient Greek
Greek form of Draco.

Echidna f Greek Mythology
Means "viper, snake" in Greek, a variant of ἔχις (echis). In Greek mythology this was the name of a monster who was half woman and half snake. By Typhon she was the mother of Cerberus, the Hydra, the Chimera, and other monsters.

Griffin m English
Latinized form of Gruffudd. This name can also be inspired by the English word griffin, a creature with the body of a lion and the head and wings of an eagle, ultimately from Greek γρύψ (gryps).

Hydra f Astronomy, Greek Mythology
Means "water serpent" in Greek, related to ὕδωρ (hydor) meaning "water". In Greek myth this was the name of a many-headed Lernaean serpent slain by Herakles. It is also the name of a northern constellation, as well as a moon of Pluto.

Lamia 2 f Greek Mythology
Possibly from Greek λαιμός (laimos) meaning "throat". In Greek mythology this is the name of a queen of Libya who was a mistress of Zeus. Hera, being jealous, kills Lamia's children, causing her to go mad and transform into a monster that hunts the children of others.

Medusa f Greek Mythology (Latinized)
From the Greek Μέδουσα (Medousa), which was derived from μέδω (medo) meaning "to protect, to rule over". In Greek myth this was the name of one of the three Gorgons, ugly women who had snakes for hair. She was so hideous that anyone who gazed upon her was turned to stone, so the hero Perseus had to look using the reflection in his shield in order to slay her.

Tiamat f Semitic Mythology
From Akkadian tâmtu meaning "sea". In Babylonian myth Tiamat was the personification of the sea, appearing in the form of a huge dragon. By Apsu she gave birth to the first of the gods. Later, the god Marduk (her great-grandson) defeated her, cut her in half, and used the pieces of her body to make the earth and the sky.

Typhon m Greek Mythology
Possibly from Greek τύφω (typho) meaning "to smoke", τῦφος (typhos) meaning "fever" or τυφώς (typhos) meaning "whirlwind". In Greek Mythology Typhon was a monstrous giant who challenged the rule of Zeus. He and his mate Echidna were said to be the parents of all monsters.