Islands (Irish: Na hOileáin) is a barony located in County Clare, Ireland.

[2] Baronies were created after the Norman invasion of Ireland as divisions of counties and were used the administration of justice and the raising of revenue.

In many cases, a barony corresponds to an earlier Gaelic túath which had submitted to the Crown.

The river and estuary of the Fergus form the eastern boundary of the barony, which slopes down to the water.

The western part is mainly peaty uplands, while the east includes some of the rich pasturage known as "Corcasses".