Kildare (Irish: Cill Dara, meaning "church of the oak") is a town in County Kildare, Ireland. Its population of 8,412 (2011 Census) makes it the eighth largest town in County Kildare and the 55th largest in the state, with a growth rate of 8.0pc since the 2006 census. Although Kildare gives its name to the county, Naas is the county town. The town lies on the R445, some 50 km west of Dublin – near enough for it to have become, despite being a regional centre in its own right, a commuter town for the capital.

Rich in heritage and history, Kildare Town dates from the 5th Century, when it was the site of the original ‘Church of the Oak' and monastery founded by St. Brigid. This became one of the three most important Christian foundations in Celtic Ireland.

It was said that Brigid's mother was a Christian and that Brigid was reared in her father's family, that is with the children of his lawful wife. From her mother, Brigid learned dairying and the care of the cattle, and these were her occupations after she made a vow to live a life of holy chastity. Both St. Mel of Ardagh and Bishop Mac Caille have been credited with the consecration of Brigid and some companions, after which the woman established a community beneath an oak tree, on a hill on the edge of the Curragh. Hence the name Cill Dara, the church of the oak.

County Kildare (Irish: Contae Chill Dara) is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the town of Kildare. Kildare County Council is the local authority for the county. The population of the county is 209,955 according to the 2011 census.

Kildare is the 24th largest of Ireland’s thirty-two counties in area and seventh largest in terms of population. It is the eighth largest of Leinster’s twelve counties in size, and second largest in terms of population. It is bordered by the counties of Carlow, Laois, Meath, Offaly, Dublin and Wicklow. As an inland county, Kildare is a generally lowland region. The county's highest points are the foothills of the Wicklow Mountains bordering to the east. The highest point in Kildare is Cupidstown Hill on the border with Dublin, with the better known Hill of Allen in central Kildare.

The county has three major rivers running through it: the Barrow, the Liffey and the Boyne. The Grand Canal crosses the county from Lyons on the east to Rathangan and Monasterevin on the west. A southern branch joins the Barrow navigation at Athy. The Royal Canal stretches across the north of the county along the border with Meath. Pollardstown Fen is the largest remaining calcareous fen in Ireland, covering an area of 220 hectares and is recognised as an internationally important fen ecosystem with unique and endangered plant communities, and declared a National Nature Reserve in 1986.