| Ioannis Damianos | |
| Birth Date: | 31 January 1861 |
| Death Date: | 12 June 1920 (aged 59) |
| Allegiance: |  Greece |
| Branch: | Royal Hellenic Navy |
| Rank: | Rear Admiral |
| Battles: | Greco-Turkish War of 1897, Balkan Wars |
| Battles Label: | Wars |
| Laterwork: | Minister for Naval Affairs |
Ioannis Damianos (Greek, Modern (1453-);: Ιωάννης Δαμιανός, 1861–1920) was a senior Greek Navy officer who fought in the Balkan Wars of 1912–1913.
He was born on 31 January 1861 in Hydra.[1] He served in the Greco-Turkish War of 1897 and in the Balkan Wars of 1912–13 as head of the Ionian Sea squadron and later as head of the cruiser squadron.[1] He also repeatedly held the post of Minister for Naval Affairs.[1]
He retired from service on 20 October 1917 and died on 12 June 1920.[1]