St Anthony's parish, Clontarf was formed in 1966 when it separated from the historic Parish of Clontarf. The parish is in the Fingal South East deanery of the Roman Catholic Archdiocese of Dublin. It is served by a Church of St Anthony of Padua which was built in 1975. The building succeeded an older building of the same name that served as a chapel-of-ease. This older church was previously the Town Hall for Clontarf during the brief period when the district was incorporated as a town, under the control of local Commissioners. It is a protected structure.
The parish takes in the part of Clontarf from the junction of Howth Road with Clontarf Road, passing south of the Parish of Killester, and then splitting the district along the line of Castle Avenue. This area includes the Garda station, a secondary retail area and localities such as Seafield.
Within the parish bounds was once a holy well, named for either St. Philip or St. Dennis. Located in the vicinity of The Stiles Road, this well is no longer visible.