By province
Girth
In this table of girth records in Ireland only girth measurements made at a height between 1.30 m and 1.50 m are listed. Trees with multiple trunks are excluded.Of course this inventory contains only tree records as far as they are registered on this site.
| Nr | Tree species | Girth | Location | Measurement | Year |
| 1 | Acer pseudoplatanus (Sycamore maple) | ~7.38 m | Golf club "The Druids Glen Course", Kilcoole, Ireland | Maarten Windemuller | 2010 |
| 2 | Pinus radiata (Monterey pine) | 6.15 m | Muckross House, Killarney, Ireland | Tim B | 2011 |
| 3 | Sequoiadendron giganteum (Giant sequoia) | 5.56 m | St Mary's Cathedral, Killarney, Ireland | Tim B | 2011 |
More...Height
There are no reliable height measurements in Ireland available yet.Age
In this table of age estimates and measurements in Ireland are shown. Of course this inventory contains only age records as far as they are registered on this site.| Nr | Tree species | Age | Location | Measurement | Year |
| 1 | Araucaria araucana (Monkey-puzzle) | 163 y | Kilmacurragh Arboretum, Rathdrum, Ireland | Maarten Windemuller | 2011 |
| 2 | Davidia involucrata (Dove tree) | 114 y | National Botanic Garden, Dublin, Ireland | Maarten Windemuller | 2011 |
More...