; Italian: Eloro), was an ancient Greek city of Magna Graecia in Sicily, situated near the east coast, about 40 km south of Syracuse and on the banks of the river of the same name.

The name is first found in Scylax;[3] for, though Thucydides repeatedly mentions the road leading to Helorus from Syracuse,[4] which was that followed by the Athenians in their disastrous retreat, he never speaks of the town itself.

Its ruins were still visible in the days of Fazello; a little to the north of the river Helorus, and about a mile from the sea-coast.

The most conspicuous of them were the remains of a theatre, called by the country people Colisseo: but great part of the walls and other buildings could be traced.

Today the impressive walls, with square bastions, of large ashlars without mortar are visible in some places.