St John's parish, Clontarf (Roman Catholic)

The Parish of St. John the Baptist, the Church of Ireland Parish of Clontarf, Dublin is a religious community located on the north shore of Dublin Bay, bounded by the Parishes of North Strand to the west, Coolock to the north, and Raheny to the east (the latter two are in a Union).The Parish Church is situated on Seafield Road, approximately 2+1⁄2 miles (4.0 km) from the churches of each of the adjoining parishes. It was built in 1866 to replace an earlier church some 200 metres away on Castle Avenue, on the edge of the grounds of Clontarf Castle.

Clontarf GAA is a Gaelic Athletic Association club based in Clontarf, Dublin, Ireland.

Scoil Uí Chonaill is a Gaelic Athletic Association club based in Dublin, Ireland.

The Battle of Clontarf (Irish: Cath Chluain Tarbh) took place on 23 April 1014 at Clontarf, near Dublin, on the east coast of Ireland. It pitted an army led by Brian Boru, High King of Ireland, against a Norse-Irish alliance comprising the forces of Sigtrygg Silkbeard, King of Dublin; Máel Mórda mac Murchada, King of Leinster; and a Viking army from abroad led by Sigurd of Orkney and Brodir of Mann. It lasted from sunrise to sunset, and ended in a rout of the Viking and Leinster armies. It is estimated that between 7,000 and 10,000 men were killed in the battle, including most of the leaders. Although Brian's forces were victorious, Brian himself was killed, as were his son Murchad and his grandson Toirdelbach. Leinster king Máel Mórda and Viking leaders Sigurd and Brodir were also slain. After the battle, the power of the Vikings and the Kingdom of Dublin was largely broken. The battle was an important event in Irish history and is recorded in both Irish and Norse chronicles. In Ireland, the battle came to be seen as an event that freed the Irish from foreign domination, and Brian was hailed as a national hero. This view was especially popular during English rule in Ireland. Although the battle has come to be viewed in a more critical light, it still has a hold on the popular imagination.

The Central Remedial Clinic (Irish: An Príomhchlinic Feabhais), commonly known and referred to as the CRC, is a non-residential national centre established for the care, treatment and development of children and adults with physical disabilities. It is located at Clontarf, Ireland.

Castle Avenue Cricket Ground, also known as Clontarf Cricket Club Ground, is a cricket ground in the suburb of Clontarf, Dublin, Ireland. It is one of two grounds of Clontarf Cricket Club, the other being at Mount Temple Comprehensive School, and is also home to two rugby union pitches belonging to Clontarf FC. The ground is one of only three One Day International grounds on the island of Ireland.

Holy Faith Secondary School, Clontarf is a girls' voluntary second level school in Clontarf on the Northside of Dublin, Ireland. Founded by the Holy Faith Sisters in 1890, and originally providing both primary (mixed sex) and secondary education, it is since 2009 in the care of The Le Cheile Schools Trust. It is notable as one of the 25 schools (of around 800 in Ireland) with the highest progression to third level education. In 2020 it was ranked 1st in North Dublin, and 7th in Ireland, by the Sunday Times.

Clontarf (Irish: Cluain Tarbh, meaning 'meadow of the bull') is an affluent coastal suburb on the Northside of Dublin in the city's Dublin 3 postal district. Historically there were two centres of population, one on the coast towards the city, and the fishing village of Clontarf Sheds, further north on the coast at what is now Vernon Avenue. Clontarf has a range of commercial facilities in several locations, mainly centred on Vernon Avenue. It adjoins Fairview, Marino, Killester and Raheny. Clontarf is in the jurisdiction of Dublin City Council. Clontarf was a core site of the Battle of Clontarf in 1014, in which Brian Boru, High King of Ireland, defeated the Vikings of Dublin and their allies, the Irish of Leinster. This battle, which extended over a wide area, from modern Ballybough to Kilbarrack, at least, is seen as marking an end to the Irish-Viking Wars.

Killester (Irish: Cill Easra) is a small residential suburb of Dublin, Ireland on the Northside of the city in the D03 and D05 postal districts. It was the site of a church and convent or monastery centuries ago, and later a small village developed. From 1922, a settlement for ex-servicemen and their families was established, and the area grew with suburban housing later. The local parish church has for many years hosted a relic of St Brigid. Killester is also a civil parish in the ancient barony of Coolock.

Killester railway station (Irish: Cill Easra) serves the suburbs of Killester and Donnycarney, as well as parts of Artane, in Dublin.

Killester Donnycarney Football Club is an Irish association football (soccer) club based in Killester, Dublin. Their senior men's team currently plays in the Senior Sunday Division of the Leinster Senior League.

St Paul's College in Raheny, Dublin, Ireland, is a Roman Catholic secondary school for boys under the trusteeship of the Vincentian Fathers, formally the Congregation of the Mission. Founded in 1950, it is one of two Vincentian schools for boys in Dublin.