| Adamantas | |
| Name Local: | Αδάμαντας |
| Type: | community |
| Coordinates: | 36.725°N 50.7°W |
| Periph: | South Aegean |
| Periphunit: | Milos |
| Municipality: | Milos |
| Pop Community: | 1268 |
| Population As Of: | 2021 |
| Licence: | EM |
Adamantas (Greek, Modern (1453-);: Αδάμαντας, older form Αδάμας, from the Greek αδάμας adamas 'diamond') is the harbour town of Milos island. It has a population of 1,268 people (2021).
Highlights include the French cemetery, used in the years of the Crimean war; the 600-year-old church of the Holy Trinity; the Milos Mining Museum; and the Maritime Museum.
Adamantas is the cultural and commercial centre of the island.