Thetis (Greek: Θέτις) is a small islet off the southern coast of the Greek island of Crete in the Libyan Sea. The islet is administered from Asterousia in Heraklion regional unit.
Native name: Θέτις | |
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| Geography | |
| Coordinates | 34°57′13″N 25°09′26″E / 34.95361°N 25.15722°E |
| Archipelago | Cretan Islands |
| Administration | |
Greece | |
| Region | Crete |
| Regional unit | Heraklion |