No, the Greek goddess Demeter does not have a last name, she does have titles and epithets.
Hephaestus had no "nick-names" only titles and epithets.
To fit a given name into the line's meter
Greek gods/goddesses did not have "last names" they had titles/epithets.
Dionysus was simply known as Dionysus, no last name, he had titles and epithets but no family last name or middle name.
Dialogue is the element writers rely on the most to reveal a character's mood. Through the words a character speaks and how they speak them, authors can provide insights into the character's emotions, personality, and overall mood in a story.
Greek gods and goddesses were only known for one name, the secondary name being a title or poetic epithets which describes her as the goddess Demeter.
Aphrodite is the most of common, however she had many epithets.Aphrodite is the most of common, however she had many epithets.
Odysseus was called many epithets, including wise, loved of Zeus, man of pain, and man of exploits.
if you are referring to the god Mercury, he does. He is also known as either Hermes or as Hermes Trismegistus. He also has a number of other epithets attached to his name.
Epithets.
Epithets