Prosperous (Irish: An Chorrchoill, meaning "The smooth forest") is a village in north County Kildare, Ireland. It is within the townland of Curryhills, at the junction of the R403 and R408 regional roads, about 40 km (25 mi) from Dublin. Its population of 1,939 (2006 Census) makes it the 14th largest town in County Kildare.