| Giannis Dermitzakis | |
| Fullname: | Ioannis Dermitzakis |
| Birth Date: | 5 November 1992 |
| Birth Place: | Heraklion, Crete, Greece |
| Height: | 1.93 m |
| Position: | Goalkeeper |
| Youthclubs1: | Ergotelis |
| Years1: | 2012–2016 |
| Clubs1: | Ergotelis |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 2016–2020 |
| Clubs2: | OFI |
| Caps2: | 7 |
| Goals2: | 0 |
| Years3: | 2021 |
| Clubs3: | Santorini |
| Caps3: | 16 |
| Goals3: | 0 |
| Years4: | 2021 |
| Clubs4: | Irodotos |
| Caps4: | 2 |
| Goals4: | 0 |
| Pcupdate: | 19 December 2021 |
Giannis Dermitzakis (Greek, Modern (1453-);: Γιάννης Δερμιτζάκης; born 5 November 1992) is a Greek professional footballer who plays as a goalkeeper.