Crusheen, Catholic parish in County Clare, Ireland

Crusheen, formerly Inchicronan, is a civil parish in the Bunratty Upper barony of County Clare, about 8.5 km north of Ennis. It measures roughly 8 by 5.6 km and covers 17,438 acres, of which 597 are water. The land is mostly rough, rocky upland, and Lough Inchicronan, over 2 km long, lies on the southern border.

In 1190 Donald O'Brien, king of Munster, founded an abbey for Canons Regular on an islet in Lough Inchicronan; the earlier church of Saint Cronán on the peninsula between the lake's two arms was removed to make room for it. The abbey now stands very dilapidated. The ruins of Inchicronan castle lie near the lake and are absent from the 1580 list of castles, while Doonmulvihill castle belonged to Owen MacSweeney in 1580.

The parish takes its name from Saint Cronán, though sources do not identify which of the saints of that name is meant; he may be the same Cronán venerated at Roscrea and Tomgraney. His church stood on the peninsula between the two arms of Lough Inchicronan before the abbey replaced it.

The parish lies about 8.5 km north of Ennis in the Bunratty Upper barony, with the Ennis–Gort road running near the west shore of Lough Inchicronan. The lake, over 2 km long, marks the southern border. The land is mostly rough, rocky upland, so expect uneven ground around the ruined churches and graveyards.

Inchicronan's ruined abbey on an islet in Lough Inchicronan was founded in 1190 by Donald O'Brien, king of Munster, for Canons Regular; the earlier church was removed to make room for it. The parish also holds five holy wells, among them Tobarmacduach and Toberbreeda, and the Giant's Grave near Spancil Hill.