Coille an Fhaltaigh is one of the People's Millennium Forests sites. The direct translation of the name means ‘Wall's Woods’. This millennium forest is the largest of the 16 that were planted in the late 90's. It is located about 5.8 km south west of Kilkenny town in County Kilkenny.

Originally scrubland, this site was replanted. The wood used to be a semi-mature conifer woodland, mainly Norway spruce with small numbers of Scots pine and Sitka spruce. There are 6 hectares of oak woodland which are over 100 years old, some of the non-native mature conifers were removed and the site was replanted with Sessile oak, ash, birch, alder, cherry and spindle as part of the People's Millennium Forest Project.

Usual wildlife associated with the woodland is fox, badger, hare, rabbit, some grey squirrel and many species of birds. Bluebells are found seasonally under the oak woodland. The geology of the middle hill portion of the forest is Cambrian rock, while the lower area of Cloon is mainly an alluvial flat.

Facilities at Coille an Fhaltaigh include a picnic site and forest walks. There is a short walk of 2.2km and a long walk of 3.3km. The close proximity of Coille an Fhaltaigh to Kilkenny means that the area is very popular with the local townspeople for walking.