Kilmanahan

Kilmanahan is a townland in the historical barony of Glenahiry in County Waterford, Ireland. The townland, which has an area of approximately 2.75 km2, had a population of 40 people as of the 2011 census.

A church, traditionally associated with Saint Mainchin and which gives the area its name, was formerly located in the townland. The nearby Kilmanahan Castle, a Georgian manor house incorporating the structure of an earlier tower house, is sometimes associated with the Greene family.