ROYAL-OAK, a village, in the parish of KILLINANE, barony of IDRONE-WEST, county of CARLOW, and province of LEINSTER, 1 mile (S. W.) from Bagnalstown, on the road from Dublin to Carlow; containing 82 houses and 428 inhabitants. This place is situated on the river Barrow, which is here crossed by a bridge, and derives its name from that of an old and well-known inn in its vicinity, which was established previously to the erection of the village.