O'Brien's Bridge or O'Briensbridge (Irish: Droichead Uí Bhriain[1]) is a village in east County Clare, Ireland, on the west bank of the River Shannon, in a civil parish of the same name.

The narrow northern section in mountainous, rising to 527 metres (1,729 ft), and the western part of the parish is also upland.

The O'Briens rebuilt the bridge, this time erecting two castles, each with walls 12 feet (3.7 m) thick, one on each side of the river.

This bridge was destroyed in 1537 by Leonard Grey, the Lord Deputy of Ireland under King Henry VIII of England, after an extended battle against the O'Briens, who had rebelled.

[5] The parish contains the townlands of Aharinaghmore, Ardataggle, Ballybrack, Ballycar North, Ballycar South, Ballyknavin, Cappakea, Carrownagowan, Cloghera, Clonboy, Coolnalira, Coumbrack, Earlhill, Fahy Beg, Fahy More North, Fahy More South, Glenlon North, Glenlon South, Kilcredaun, Kilroughil, Knockaderreen, Knockdonagh, Lackareagh Beg, Lackareagh More, Magherareagh, O'Briensbridge, Ross, Roo East, Roo West and Trough.