| Ioannis Antoniou | |
| Nationality: | Hellenic |
| Birth Date: | 27 January 1995 |
| Birth Place: | Lamia, Greece[1] |
| Height Cm: | 185 |
| Weight: | 91 |
| Sport: | Alpine skiing |
| Club: | E.O.S Karpenisiou |
| Turnedpro: | 2012 |
| Coach: | Pappos Stergios |
Ioannis Antoniou (Greek, Modern (1453-);: Ιωάννης Αντωνίου) (born 27 January 1995) is an alpine skier from Greece. He competed for Greece at the 2018 and 2022 Winter Olympics.[2]