Killarney (Irish: Cill Airne, meaning "church of sloes") is a medium-sized town in County Kerry, southwestern Ireland. The town is on the northeastern shore of Lough Leane, which is part of Killarney National Park. The town and its hinterland is home to St Mary's Cathedral, Ross Castle, Muckross House and Abbey, the Lakes of Killarney, MacGillycuddy's Reeks, Purple Mountain, Mangerton Mountain, the Gap of Dunloe and Torc Waterfall. Its natural heritage, its history and its location on the Ring of Kerry make Killarney a popular tourist destination.
Killarney is, according to the online travel website Tripadvisor, Ireland's most popular travel destination for 2015, placing it 23rd in Europe.
Killarney was bestowed the prestigious "Best Kept Town" award in 2007, in a cross-border competition jointly organised by the Department of the Environment and the Northern Ireland Amenity Council. In 2011, it was named Ireland's tidiest town and the cleanest town in the country by Irish Business Against Litter.