Donnybrook Cemetery is located close to the river Dodder in Donnybrook, Dublin, Ireland. The cemetery was the location of an old Celtic church founded by Saint Broc and later a church dedicated to St. Mary. The site has been in use between 800 to 1880 with the exception of some burial rights.
The site was once the location of an old Celtic church founded by Saint Broc which lends its name to Donnybrook (Irish: Domhnach Broc). Later the church of St. Mary was dedicated by the Archbishop of Dublin, Archbishop John Comyn sometime between 1181 and 1212. The church was rebuilt by Archbishop William King in 1720 and by 1827, due to the size of the congregation, a replacement church was built on the corner of Anglesa Road and Simmonscourt Road and dedicated to St. Mary in 1830. The old church was demolished and the materials were sold off. There is a small wall in the middle of the cemetery that is thought to be the remains of the old church.
The entrance to the cemetery was originally located to the south where the Religious Sisters of Charity are located. Today the entrance is beside the Garda station and is through an archway that was erected by the Dublin Stock Exchange in 1893 in memory of Thomas Chamney Searight.
The archway serves as a plaque and reads,
This memorial has been erected by the members of the Dublin Stock Exchange to the late Thomas Chamney Searight for many years the registrar to their society. He died May 27th 1890 and his remains are buried in this churchyard.
In 1847 much needed improvements were made as the cemetery had become neglected.
In 1879 the discovery of the remains of 600 people was made at a mound on Ailesbury Road which dated back to a bloody massacre by the Danes in the 9th to 10th century. The bodies were removed and buried in the cemetery.
In 1931 when the street was widened and the entrance was moved back approximately fifteen feet, a mass grave was discovered. The bodies were reburied in the south of the cemetery.
The Fitzwilliam family had their own chapel built onto the St. Marys church in the early 16th century. Sir Richard Fitzwilliam was interred in cemetery in 1595 and Nicholas Fitzwilliam in 1635. The 2nd Viscount Fitzwilliam and 1st Earl of Tyrconnell, Oliver FitzWilliam, was buried under of a tomb of black marble in the family chapel with the inscription, 
Here lyeth the Body of the Right Honourable And most Noble LORD OLIVER, Earl of Tyrconell, lord Viscount FITZ_WILLIAMS, or Meryonge, Baron of Thorn-Castle, who died at his House in Meryong April 11th 1667, and was Buried the 12th day of the same month.
Richard Fitzwilliam, 6th Viscount FitzWilliam of Merrion died in 25 May 1776 and was interred in the family chapel. The family tomb is missing from the cemetery.
There are a few notable religious figures buried here such as,
- Archbishop William King (1650-1729), archbishop of Dublin.
- Bishop Robert Clayton (died 1758), Bishop of Clogher.
- Rev. Richard Graves (1763–1829) was a theological scholar and the author of the classic in its time, Graves on the Pentateuch.
- Rev. George Wogan (died 1826) was a curate of the Donnybrook parish and was murdered in his house in Spafield Place near Ballsbridge. Later on the evening of his murder, two bandits were apprehended for a highway robbery on the Blackrock Road and confessed to the murder and were hanged.
- Rev. Arthur Gore Ryder (died 1889) rector of Donnybrook and many years later the last two burials in Donnybrook were his two sisters Elizabeth 1935 and Amy 1936.
Other notable burials
- Sir Edward Lovett Pearce (1699-1733) was an Irish architect.
- Bartholomew Mosse (1712–1759) was an Irish surgeon and impresario responsible for founding the Rotunda Hospital in Dublin.
- William Ashford (1746–1824) was a British painter who worked exclusively in Ireland.
- Dr. Richard Robert Madden (1798-1886) was an Irish doctor, writer, abolitionist and historian of the United Irishmen. He is buried here with his father and other members of his family.
- Igoe, Vivien (2001). "Dublin Burial Grounds & Graveyards", Wolfhound Press, p86-93, ISBN 0-86327-872-8