Iapetus – Titan god, son of Ouranus and Gaia, husband of Clymene, and father to Atlas, Menoetius, Prometheus and Epimetheus. Greek god of Mortality.
Iasion - Mortal son of Zeus and the Pleiad Electra, brother of Dardanus. Beloved of Demeter who bore by him Plutos, the Greek god of Wealth.
Icarius (i) - Mortal king, son of Perieres and Gorgophone possibly, father of Penelope amongst others, King of Acarnania
Icarius (ii) - Mortal, resident of Athens who welcomed Dionysus
Icarus - Son of Daedalus and Naucrate, who escaped from Crete with his father but later plunged to his death when he soared to high.
Ilus (i) - Mortal prince, son of Dardanus and Batea, brother of Erichthonus, heir to throne of Dardania, but predeceased his father.
Ilus (ii) - Mortal king, son of Tros and Callirhoe, brother of Assaracus and Ganymede, father of Laomedon, and founder of the city of Ilium.
Inachus - Potamoi, son of Oceanus and Tethys. God of the River Inachus in the Argolis.
Io - Naiad nymph, daughter of Inachus and Argia. Lover of Zeus before being forced to wander the earth in the form of a heifer.
Iobates - Mortal king, father of Philonoe and Stheneboea, father-in-law of Bellerophon and Proetus. King of Lycia.
Iole - Mortal princess, daughter of King Eurytus. Princess of Oechalia. Concubine of Heracles.
Ion - Son of Apollo and Creusa, and ancestor of all Ionians.
Iphimedia - Mortal, daughter of Triopas and Hiscilla, wife of Aloeus, lover of Poseidon, mother of Otus, Ephilates and Pancratis
Iphitus - Mortal hero, son of Eurytus and Antioche. Prince of Oechalia and an Argonaut
Iris - Early goddess, daughter of Thaumas and Electra. Greek goddess of the Rainbow, and a messenger deity.
