What is the name of the ten-year war between the Titans and the Olympians?

The ten-year war between the Titans and the Olympians was called the Titanomachy.

The name comes from Greek words referring to the Titans and a battle or war. In the myth, the conflict began after Zeus grew to adulthood, freed his siblings from Cronus, and challenged his father’s rule over the cosmos.

Zeus and the Olympians fought from Mount Olympus, while Cronus and the Titans were associated with Mount Othrys. The war lasted ten years before Zeus’s coalition prevailed. The Cyclopes supplied the thunderbolts, trident, and helmet of darkness, while the Hecatoncheires helped overwhelm the Titans with enormous stones.

Titanomachy is often confused with Gigantomachy, the later conflict between the Olympian gods and the Giants. Theomachy is a broader term for conflict involving gods and does not specifically name this succession war. After the victory, many Titans were confined to Tartarus, while Atlas received the separate punishment of holding up the sky.