Who is the king of the Phaeacians who helps Odysseus?

The king of the Phaeacians who helps Odysseus is Alcinous. He rules the Phaeacians on the island of Scheria and plays a central role in the final stage of Odysseus's return journey.

After Nausicaa finds the shipwrecked Odysseus, she guides him toward her father's palace. Alcinous and his wife, Queen Arete, receive the unknown traveler generously. During a banquet, the singer Demodocus performs episodes connected with the Trojan War, causing Odysseus to weep and eventually reveal his identity and adventures.

Alcinous responds by offering practical help. He arranges games and feasts, provides gifts, and asks the Phaeacians to escort Odysseus home. Their magical or exceptionally swift ships carry him to Ithaca while he sleeps. Alcinous is sometimes confused with Arete, who is his queen and an important authority at court, or with Nausicaa, their daughter. Laodamas is one of their sons, not the king.