Kilmoyler is a townland in the civil parish of Killardry in the barony of Clanwilliam, South Tipperary in Ireland. It is part of the parish of Bansha and Kilmoyler in the Roman Catholic Archdiocese of Cashel and Emly. The Galtee Mountains and River Suir dominate the landscape here.
It is located approximately halfway between the towns of Cahir and Bansha on the River Suir and is more closely associated with Bansha through its ecclesiastical and sporting ties, the parish being united with Bansha in 1858 and in a sporting context, the community is an integral part of the Galtee Rovers GAA Club which has its club grounds and clubhouse in Bansha village. The land is very fertile and agriculture predominates with dairying as the main occupation.
While there is no village or hamlet in the immediate locality, the Roman Catholic Church of The Assumption at Kilmoyler is the focal point for the Community, while the creamery at Tankerstown was also a centre of daily activity until its closure due to rationalisation in the dairying industry in the late 20th century. The parochial burial ground of Killaldriffe is nearby and is reputed to be the ancient burial place of the kings of Munster, based on an alternate name Killardrigh, or "Church of the High King." It is said to be called after an Ard Rí, High King of Munster, who met his death while bathing in the nearby Suir. It is here also that Lieutenant General Sir William Francis Butler, famous soldier and adventurer is buried. Saint Pecaun or Becán is revered in the parish, especially on 1 August each year when a pattern is held at the Saint's monastic settlement at nearby Toureen. Saint Pecaun lived in the seventh century. The Annals of the Four Masters record his death in the year 689 with his feast-day as 26 May. The site consists of a ruined church, carved stones, a well and monastic cell. Close by, across the River Suir is the Moat of Knockgraffon, which is a 'Motte & Bailey' of ancient origin.
Gaelic games are popular here and a large number of Kilmoyler families have long been associated with the Galtee Rovers Club in Bansha while the contemporary artist and member of Aosdána, Alice Maher is also a native of Kilmoyler. The children of the locality attend both Ballydrehid and Tankerstown National Schools, the former being a landmark building on the National Primary Route N24 linking the cities of Limerick and Waterford.