St Patrick's Cathedral dominates the centre of Dundalk with its twin Gothic spires, completed in 1847 in a perpendicular Gothic style modelled loosely on King's College Chapel, Cambridge. The interior is large and well-proportioned, with carved stonework, fine stained glass, and a sense of civic ambition unusual for a county town of this size. The cathedral is the mother church of the Diocese of Dromore and remains an active parish church.
The building's completion during the Great Famine gives it a particular historical resonance — the Gothic Revival optimism of its architecture sits in stark contrast to the catastrophic conditions outside its walls during the years of its construction. A small garden to the north of the building is a pleasant place to sit. The cathedral is open to visitors throughout the day.