There are plenty of similarities between the Greek gods and the Roman gods. The Romans simply had taken the Greek gods when they had conquered the Hellenistic world. Many of the beliefs and practices of the Greeks were adopted by the Romans. In short, there are not that many differences between the Greek and Roman gods. The Romans had borrowed many things from the Greeks.

There is only one distinct difference, the god of war. In Greek mythology, the name is Ares. In Roman mythology, the name is Mars. However, that is not the distinct difference between the two. Mars is also known as the god of agriculture and fertility asides being known as the god of war. Ares is known simply as the god of war. The major distinct difference is that Mars is considered to be more benevolent and revered. Ares is considered to be very fearsome.

In Greek mythology, the following Olympian gods are known as: Aphrodite, Apollo, Ares, Artemis, Athena, Demeter, Dionysus, Hades, Haphaestus, Hera, Hermes, Hestia, Poseidon, and Zeus.

In Roman mythology, the following Roman gods are known as: Venus, Apollo, Mars, Diana, Minerva, Ceres, Liber, Pluto, Vulcan, Juno, Mercury, Vesta, Neptune, and Jupiter.

Aphrodite and Venus share the same title of being the goddess of love, lust, sex, beauty, and vanity.

The name of Apollo remains the same in both Greek and Roman mythology. He is considered the god of music, prophecies, poetry, and archery. However, he is also known as the sun god. He is said to have rode on a chariot of flames.

Ares and Mars both share the title as the god of war. However, Ares is more feared while Mars is more revered. Ares is considered to be known as the god of war, murder, and bloodshed. Mars is considered to be known as the god of war, fertility, and agriculture. Ares is the god of war and death while Mars is the god of war and life. Murder and bloodshed both equal to death. Fertility and agriculture both equal to life.

Artemis and Diana both have the title of the goddess of the hunt.

Athena and Minerva both have the title of the goddess of wisdom.

Demeter and Ceres both have the title of the goddess of fertility, grain, and harvest. In short, this is a goddess of life.

Dionysus and Liber both have the title of having of being the god of wine, parties, madness, and merriment. Liber could be the original of the word “libations.”

Hades and Pluto both have the title of god of the underworld.

Hephaestus and Vulcan both have the title of being the god of the fire and smiths. The word “volcano” is inspired from the name of Vulcan.

Hera and Juno both have the title of the queen of the gods.

Hermes and Mercury both have the title of being the god of flight. An additional title would be the messenger of the gods.

Hestia and Vesta both have the title of being the goddess of the hearth.

Poseidon and Nepture both have the title of being the god of the sea.

Zeus and Jupiter both have the title of being the king of the gods along with being the god of the sky and thunder.

Overall, the Greek and Roman gods are similar. However, they are merely different just by name. The only significant difference would be between Ares and Mars.