KILMACUD, a parish, in the half-barony of RATHDOWN, county of DUBLIN, and province of LEINSTER, 4 miles (S. E.) from Dublin ; containing 145 inhabitants. It comprises about 260 acres, which are in a high state of cultivation ; and from the salubrity of its air and the beauty of its marine and mountain views, it is a favourite spot for country residences. Among these are Ribblesdale, the seat of His Grace the Archbishop of Dublin ; Kilmacud House, of T. Mooney, Esq. ; Merville, of W. 3. McCausland, Esq. ; Lakelands, of S. Boileau, Esq. ; Woodley, of P. A. Leslie, Esq. ; Rockfield, of J. Hone, Esq. ; Westbury, of E. O'Beirne, Esq. ; Kilmacud Cottage, of W. Flood, Esq. ; and Parson's Green, of W. S. Magee, Esq. It is a chapelry, in the diocese of Dublin, forming part of the union of Stillorgan ; the tithes amount to £42. In the R. C. divisions it forms part of the union or district of Booter's-town. This is said to be the birth-place of St. Cuthbert, Bishop of Lindisfarne, from whom its name is derived.