Killarney (Irish: Cill Airne, meaning "church of sloes")[6] is a town in County Kerry, southwestern Ireland. The town is located north of the MacGillicuddy Reeks, on the northeastern shore of the Lough Lein/Leane which are part of Killarney National Park. The town and its surrounding region are home to St. Mary's Cathedral, Ross Castle, Muckross House and Abbey, Lakes of Killarney, Torc Waterfall and Gap of Dunloe.

Killarney was awarded the "Best Kept Town" award for 2007 in a cross-border competition jointly organised by the Department of the Environment and the Northern Ireland Amenity Council.