Annaclone (from Irish Eanach Luain, meaning 'marsh of the haunch-like hill') is a village and civil parish between Rathfriland and Banbridge in south County Down, Northern Ireland, about 7 km south-east of Banbridge. The village is situated in the townlands of Ardbrin and Tullintanvally and both it and the civil parish are located in the historic barony of Iveagh Upper, Upper Half. It had a population of 190 people (85 households) in the 2021 census.^{[citation needed]}

The geography of Annaclone is typical of much of the area around the Mourne Mountains with rolling drumlins and farmland. Nearby Corbet Lough is visited by anglers while the highest point of the parish, locally known as 'the Knock', has views of the Mourne Mountains towards the south and Slieve Croob towards the north east.^{[citation needed]}

Several Celtic artefacts were found in a marsh in the Ardbrin area of Annaclone. These finds included a horn known as the 'Ardbrin Horn' which now resides in the National Museum of Ireland, Dublin. Historically, the area belonged to the Magennis clan. The remains of their castle are situated in nearby Rathfriland.^{[citation needed]}

The local Gaelic Athletic Association (GAA) club, Annaclone GAC, was founded in 1897.^{[citation needed]}

Annaclone has previously played host to a stage of the Circuit of Ireland Rally as well as other cycling events throughout the year.^{[citation needed]}

The civil parish of Annaclone includes the village of Annaclone. Townlands within the civil parish include: