These Irish name elements are associated with this record in the Logainm glossary.
An element’s translation is a clue, rather than a complete explanation of the name. Its form and meaning depend on local history and the full Irish name.
Recorded forms
Buiríos Mór Osraí· Irish · main form · validated name
Borris-in-Ossory· English · main form
Place & story
The castle and the Manor of Villiers
William Carrigan's 1905 history of the diocese of Ossory identifies a reference to Borris in Brian Oge's will of 1581, which left the castle or house there to his wife. Carrigan also records the grant of Borris and many surrounding townlands to George Villiers, Duke of Buckingham, in 1626–27, forming the Manor of Villiers. These documentary references establish an early framework for the settlement's history. They should not be confused with proof that any particular surviving village building dates from that period.[2]
The courthouse on Main Street
The former courthouse is a substantial two-storey building dated approximately to 1828 by the architectural inventory. Its courtroom fittings were still recorded during the 2004 survey, after a period of use as council offices. The building later became vacant. In February 2026 Laois County Council announced contracts for its redevelopment as a community and digital enterprise hub. This is a later reuse project, distinct from the courthouse's original judicial function. The dated records show how one prominent civic building has passed through different roles and periods of disuse.[3][4]
Saint Mark’s and its unusual tower
Saint Mark's Church of Ireland church was designed by Welland and Gillespie and consecrated on 23 December 1869. The Dictionary of Irish Architects records that John Lyster donated the former Saint Leonard's Hotel site in 1867. The design combined a small rectangular church with a vestry and a round tower on its southern side. Signed drawings survive in the Representative Church Body Library. They provide documentary evidence for a deliberately nineteenth-century church design, even where the tower's form recalls much older Irish ecclesiastical monuments.[5]
Borris-In-Ossory — Census 2016 settlement footprint
Population within 2016 settlement boundaries
679people · 2022
Both counts use the 2016 settlement boundary, allowing like-for-like comparison. CSO supplies the 2022 count on this older boundary for comparison only. The official 2022 Built Up Area has different boundaries.
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Borris-In-Ossory — Census 2016 settlement footprint — census population
Borris-in-Ossory, Laois — Census town, CSO 2006 report
2002–2006: census town
488people · 2006
These are the historical areas published in the 2006 census report. Boundaries may differ between censuses and from modern settlements. Legal towns, environs and suburbs are shown separately; none has been combined into a modern settlement total.
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Borris-in-Ossory, Laois — Census town, CSO 2006 report — census population
Borris-in-Ossory, Laois — Census town, CSO 1996 report
1991–1996: census town
282people · 1996
These are the historical areas published in the 1996 census report. Boundaries may differ between censuses and from modern settlements. Legal towns, environs and suburbs are shown separately; none has been combined into a modern settlement total.
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Borris-in-Ossory, Laois — Census town, CSO 1996 report — census population
Borris-in-Ossory, Laois — Census town, CSO 1986 report
1981–1986: census town
365people · 1986
Figures cover the historical town area printed in the 1986 report. Boundaries may have changed between censuses. Legal town, environs and suburb totals remain separate and differ from modern settlement boundaries.
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Borris-in-Ossory, Laois — Census town, CSO 1986 report — census population
These figures use different area definitions. Read the boundary note before comparing them.
Borris-in-Ossory, Laois
Published census settlement populations
508people · 2016
Settlement boundaries changed during this period. Differences may reflect boundary changes as well as population change. Where a 2011 legal-town-and-environs count is shown, it has not been recalculated onto the 2016 settlement boundary.
Saint Mark's Church, Borris-in-Ossory, County Laois illustration: based on a Borris-in-Ossary, County Laois by Sarah777. AI-assisted watercolour and ink adaptation; cream paper margins added, incidental clutter omitted and fine details simplified. Licence: CC BY-SA 2.0.