MERRION, a village in the parish of St. Mary's, Donnybrook, Dublin barony and county, 2 3/4 miles S.E. by S. from the G.P.O., Dublin; comprising an area of 197 acres; population, 523.

It is situated on the road to Kingstown and Bray; and fronts the strand of the bay of Dublin, which is here crossed by the Kingstown railway, where there is the first station of the line. It contains 72 houses, which are mostly small, and let in lodgings in the summer to sea bathers, where the strand, smooth and firm, invites such visitors. Along the road to the Blackrock, and in the neighbourhood around, there are various pretty seats and villas, among which are Elm-park, Bloomfield, Merrion-hall, and Merrion Castle, in the grounds of which latter are the ivied ruins of the castle of the ancient proprietors.

The nearest Post Office letter receiver is Booterstown.