Ialysos (Greek: Ιαλυσός), also known as Trianta, is a town and a former municipality on the island of Rhodes, in the Dodecanese, Greece. Since the 2011 local government reform it is part of the municipality Rhodes, of which it is a municipal unit. It is the second-largest town on the island of Rhodes. It has a population of approximately 12,000, and is located eight kilometres west of the town of Rhodes, the island's capital, on the island's northwestern coast.

Ialysos (Greek: Ιαλυσός), also known as Trianta, is a town and a former municipality on the island of Rhodes, in the Dodecanese, Greece. Since the 2011 local government reform it is part of the municipality Rhodes, of which it is a municipal unit. It is the second-largest town on the island of Rhodes. It has a population of approximately 12,000, and is located eight kilometres west of the town of Rhodes, the island's capital, on the island's northwestern coast.