From Greek kratos meaning 'strength, power', personified as the divine embodiment of strength and authority.
In ancient Greek, Kratos (Κράτος) is not merely a name but a concept — it means strength, power, and dominion, functioning as the abstract noun for force itself. In Hesiod's Theogony, composed around the eighth century BCE, Kratos and his siblings Bia (Force), Nike (Victory), and Zelus (Zeal) are the children of the Titan Pallas and the Oceanid Styx, divine personifications who stand eternally at the side of Zeus as attendants of cosmic authority. Kratos appears dramatically in Aeschylus's Prometheus Bound, where he coldly oversees the chaining of Prometheus to his rock — power without mercy, executing divine will.
For two millennia Kratos remained primarily the province of classical scholars, a philosophical and mythological abstraction rather than a name parents chose for their children. That changed decisively in 2005 when Sony Santa Monica released God of War, a video game in which Kratos — a Spartan warrior condemned to serve the gods and driven by grief-fueled rage — became one of the most iconic protagonists in gaming history. The franchise's extraordinary commercial and cultural success, culminating in the 2018 Norse-mythology reboot and its sequels, reintroduced Kratos to a global audience of hundreds of millions.
Today Kratos functions as a gamer-culture name that has broken into mainstream consciousness, worn without irony by parents who grew up with the franchise. It carries the full weight of its Greek etymology — power, force, sovereignty — while adding layers of narrative complexity: the tragic father, the man wrestling with his violent past. Few names are simultaneously this ancient and this contemporary.