Antínoös was in Greek Mythology one of the many suitors of Penelope (Odysseus' wife) in Odysseus' house, in Ithaka, during the time of The Odyssey. He was one of the suitors that hated Telemachus, her son, and wanted to devise a plan to kill him. He was the son of Eupeithes.
He was the first suitor to be killed by Odysseus, who finally returned to his house after being disguised as a beggar. Odysseus shot Antinoos in the neck with the Great Bow of his house while Antinoos was lifting up a cup about to drink, before he would try the bow in the contest of stringing it successfully and shooting an arrow through the holes of 12 axe-heads lined up, which all the other suitors failed at.
- Eurymachus, another lead-suitor
- Amphinomos, another suitor
- Eumaios, the swineherd of Odysseus' house