| Psathonisi | |
| Native Name: | Ψαθονήσι |
| Nickname: | --> |
| Coordinates: | 36.7492°N 25.3639°W |
| Location: | Aegean Islands |
| Area Km2: | 0.058 |
| Area Footnotes: | [1] |
| Length Km: | 1.06 |
| Width M: | --> |
| Coastline M: | --> |
| Elevation M: | 53 |
| Country: | Greece |
| Country Admin Divisions Title: | Administrative region |
| Country Admin Divisions: | South Aegean |
| Country Admin Divisions Title 1: | Regional unit |
| Country Admin Divisions 1: | Thira |
| Country Admin Divisions Title 2: | Municipality |
| Country Admin Divisions 2: | Ios |
| Country Area M2: | or |
| Country Area Ha: | --> |
| Country 1 Area M2: | or |
| Country 1 Area Ha: | --> |
| Population: | 0 |
| Population As Of: | 2011 |
| Timezone1: | EET |
| Utc Offset1: | +2 |
| Timezone1 Dst: | EEST |
| Utc Offset1 Dst: | +3 |
Psathonisi (Greek, Modern (1453-);: Ψαθονήσι) is a small uninhabited island near the castle of Palaiokastro in Ios, Greece. The island is about 50 meters from the main island.
It has no beaches because it is very steep with maximum elevations of 53 meters and mainly made out of slate and rocks. The name derives from the nearby village Psathi.
The island has no trees but some small bushes just like the neighbouring island of Ios. Also, it hosts some wild flowers and a lot of cotton thistles.
The island is considered an archaeological site, since it houses the remains of a protocyclatic settlement.[2] [3] [4]