What is the Roman name of the Greek god Ares?

In ancient Roman religion and myth, Mars was the god of war and also an agricultural guardian, a combination characteristic of early Rome. He was second in importance only to Jupiter and he was the most prominent of the military gods in the religion of the Roman army.

Under the influence of Greek culture, Mars was identified with the Greek god Ares, whose myths were reinterpreted in Roman literature and art under the name of Mars. However, the character and dignity of Mars differed in fundamental ways from that of his Greek counterpart, who is often treated with contempt and revulsion in Greek literature.

While Ares was viewed primarily as a destructive and destabilizing force, Mars represented military power as a way to secure peace, and was a father (pater) of the Roman people.

The importance of Mars in establishing religious and cultural identity within the Roman Empire is indicated by the vast number of inscriptions identifying him with a local deity, particularly in the Western provinces.