|Suburb of Dublin|
|• Local Authority||Fingal County Council|
|• Dáil Éireann||Dublin West|
|Elevation||56 m (184 ft)|
|Irish Grid Reference||O055383|
Location and access
Originally a small village in its own right, Clonsilla is now a large residential suburban area, with Ongar and other localities developing their own subsidiary identities. It falls into the Dublin 15 postal district, the Dublin West Dáil constituency and is locally administered by Fingal County Council.
The townland of Clonsilla is in the civil parish of Clonsilla which is in turn in the barony of Castleknock. The barony (an old administrative division) is one of seven and a half comprising County Dublin and stretches from Cabra to Blanchardstown (from east to west) and from Finglas to Chapelizod (from north to south).
Townlands in the civil parish
The Parish of Clonsilla in the seventeenth century is stated to have comprised the townlands of Ballstown, Barberstown, Blackstaheney, Barnageeth, Clonsillagh, Coolmine, Cusanstown, Hartstown, Huntstown, Ininstown, Killiestown, Luttrellstown, Pibblestown, Ringwellstown, and Little Stackheney. The table below  represents the current lists of townlands in the parish.
|Baile an Bhearbóraigh||Barberstown|
|Baile an Bhlácaigh||Blakestown|
|Baile an Hartaigh||Hartstown|
|Baile an Huntaigh||Huntstown|
|Baile Fiobail nó Páirc Hans||Phibblestown or Hansfield|
|Baile Uí Cheallaigh||Kellystown|
|Cnoc an Sciobóil||Barnhill|
|Gort na Giolcaí||Broomfield|
|Móinteán na gCaorach||Sheepmoor|
Clonsilla railway station is the main exchange station for commuter services going between Dublin and Maynooth and M3 Parkway lines. Passengers travel to Maynooth to transfer to Dublin to Sligo intercity service. Residents of Ongar and Hansfield can use Hansfield railway station.
Near N3/M3 national road between Cavan and Dublin city centre.
Clonsilla has seen significant residential housing development in recent times. Estates such as Mount Symon, Castlefield, Charnwood, Limelawn, Ravenswood, Manorfields, Portersgate, Aldemere,were built during the past 15 years, with Lohunda also seeing significant expansion during that time. As a result, the population of the area has risen dramatically over the same period. Clonsilla is roughly equidistant from Blanchardstown and Castleknock.
Places of interest
- Luttrellstown Castle - dating from the early 15th century and once owned by members of the Guinness family, it is now a hotel, with associated golf course, and was thrown into the spotlight when David Beckham and Victoria Adams married there. American Rock music band R.E.M. also stayed here during the Monster World Tour in 1995.
- The Shackleton Gardens at Beech Park. Home to famous walled garden containing many rare flower species and formerly owned by the Shackleton family. Opposite Luttrellstown Castle.
- Beech Park, a public park opened in May 2009, maintained by Fingal County Council
- The Royal Canal. Many varied species of freshwater fish such as pike, perch and roach can be caught along the banks of the canal.
Clonsilla has a number of national schools, including St. Mochta's, St. Philips, St. Ciarans (Hartstown), and Scoil Choilm Community National School (Porterstown). There are five secondary schools in the vicinity, Hartstown Community School, Castleknock Community College, Coolmine Community School, Luttrellstown Community College and Castleknock College.
- The Ipswich Town player Mark Kennedy (footballer) is from Clonsilla and started his career at St.Mochta's FC.
- Thomas Luttrell of Luttrellstown Castle ( died 1554 ) Chief Justice of the Irish Common Pleas, was buried in Clonsilla and left a bequest to build a chapel in his memory.
- Emma Ledden, TV and radio presenter, is originally from Clonsilla.
- Glen Crowe is an Irish professional football forward. He was a prolific goalscorer in the League of Ireland and has represented the Republic of Ireland national football team on two occasions. Crowe previously played for Wolves, Bohemians, Shelbourne and Sporting Fingal. Glen was born and raised in the Clonsilla area.