The king of the Olympian gods in Greek mythology is Zeus. Zeus is the son of Cronus and Rhea and is known as the ruler of the gods and the sky. He is often depicted as a mature man with a regal appearance and a beard. Zeus wields thunderbolts as his weapon and presides over the realm of Mount Olympus. He is associated with various domains, including the sky, lightning, justice, and the king of gods and men. Zeus plays a significant role in Greek mythology, often portrayed as a powerful and influential deity who oversees the affairs of gods and mortals.