Fallagloon is a townland lying within the civil parish of Maghera, County Londonderry, Northern Ireland. It lies in the north-west boundary of the parish, and is bounded by the townlands of; Ballyknock, Ballynahone Beg, Bracaghreilly, Currudda, Drumballyhagan, Falgortrevy, Fallylea, Glenshane, and Tullyheran. It was apportioned to the Vintners company.[1] It is known for being the longest townland in Ireland[2]
The townland in 1926 was part of Tullykeran district electoral division as part of the Maghera dispensary (registrar's) district of Magherafelt Rural District.[3] Fallagloon as part of Maghera civil parish also lies in the historic barony of Loughinsholin.