| Post: | Chief |
| Body: | the Hellenic Navy General Staff |
| Flag: | Flag of the Hellenic Navy General Staff.svg |
| Incumbent: | Vice Admiral Ioannis Drymousis |
| Incumbentsince: | 16 January 2023 |
| Department: | Hellenic Navy General Staff |
| Reports To: | Chief of the National Defence General Staff |
| Seat: | Hellenic National Defence General Staff |
| Formation: | 13 December 1907 |
| Abbreviation: | Α/ΓΕΝ |
The Chief of the Hellenic Navy General Staff (Greek, Modern (1453-);: Αρχηγός του Γενικού Επιτελείου Ναυτικού|Archigós tou Genikoú Epiteleíou Naftikoú, abbrev. Α/ΓΕΝ) is the head of the Hellenic Navy General Staff and commander of the Hellenic Navy. The position is customarily held by a three-star flag officer (vice admiral). As part of Greece's membership in NATO, from 1967 until 1999 the Chief of the HNGS was also commander of NATO's COMEDEAST.