Kilternan (Irish: Cill Tiarnáin, meaning "Church of Tiarnán") is a village in County of Dún Laoghaire-Rathdown, in the foothills of the Dublin Mountains south of Dublin, near the border with County Wicklow.Separated from the continuous built-up Dublin area, it is a suburban village in rural surroundings at the crossroads of the R117 and R116 regional roads.Proposed development scheduled to begin in 2009 would have expanded the urban area, but the plans were forestalled by the bursting of the property bubble in Ireland.Kilternan's most notable buildings are the Church of Ireland Parish Church of Kilternan which dates from 1826, the timber-built Catholic Church of Our Lady of the Wayside (Blessed and Dedicated on 14 July 1929), or 'The Blue Church' as it is known locally after its Marian colour, and the Golden Ball, or Palmers, pub which has been closed since June 2012 These names are joined at the local soccer club, Wayside Celtic whose ground is known as The Golden Ball.