| Rineia | |
| Native Name: | Ρήνεια |
| Native Name Lang: | el |
| Coordinates: | 37.409°N 25.229°W |
| Map: | Greece |
| Archipelago: | Cyclades |
| Area Km2: | 14 |
| Elevation M: | 136 |
| Country: | Greece |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | South Aegean |
| Country Admin Divisions Title 1: | Regional unit |
| Country Admin Divisions 1: | Mykonos |
| Country Admin Divisions Title 2: | Municipality |
| Population: | 0 |
| Population As Of: | 2001 |
| Postal Code: | 846 00 |
| Area Code: | 22890 |
| Registration Plate: | EM |
Rineia or Rhenea (Ρήνεια), anciently Rheneia (Greek, Ancient (to 1453);: Ῥήνεια) or Rhenaia (Ῥηναῖα),[1] or Rhene (Ῥήνη), is a Greek island in the Cyclades. It lies just west of the island of Delos and further southwest of the island of Mykonos, of which it and Delos are administratively a part. Its area is 14km². It had a small population until the 1980s, but is currently uninhabited.
In ancient times the island was subdued by the tyrant Polycrates of Samos and dedicated to the Delian Apollo. The southern half of the island was the necropolis of Delos.[1] In the sixth year of the Peloponnesian War (426 BCE), the Athenians purified Delos. They removed all the tombs from the island and prohibited any future burials on Delos on religious grounds; they declared it was unlawful henceforth for any living being to be born or die within it, and that every pregnant woman should be carried over to the island of Rheneia in order to deliver.