Hollystown is a townland in north-west Dublin in the Dublin 15 postcode region. It is best known for its golf course, which is also called Hollystown. The nearest buses are in Tyrrelstown. There is a filling station and church in Hollystown but most of the major services and amenities are in nearby Tyrrellstown or Blanchardstown. It is in close proximity both the N2, N3 and M50.