Glynn (from Irish: an Gleann, meaning "the valley") is a small village and civil parish in the Mid and East Antrim Borough Council area of County Antrim, Northern Ireland. It lies a short distance south of Larne, on the shore of Larne Lough. Glynn had a population of 2,027 people in the 2011 Census.
The Church of Gluaire is supposed to have been founded by St Patrick in 435 A.D. The ruins of an old stone church still stand within the village boundary. Prior to baronial division, the county of Antrim was divided into the districts of North Clandeboye and Glynns (Glynnes). The area was a vicarage in the Diocese of Connor and ecclesiastical province of Armagh and was a gift of the Marquess of Donegall.
The village is then mentioned in a grant from King James I to Arthur Lord Chichester, Baron of Belfast, of his estates in Antrim, Down and Carrickfergus. This grant was dated 20 November 1620. In a later grant from King Charles II to Edward, Viscount Chichester, Glynn was mentioned as being part of the territory of Magheramorne.
Written information exists that details how Sir John Chichester, governor of Carrickfergus, was beheaded by James MacSorley MacDonnell at a site on the eastern edge of the village. James MacDonnell and his men had made a feint on Carrickfergus town. They were then pursued to the glen of Altrackyn, some five miles (8 km) from Glynn. Sir John was captured and his men were nearly cut to pieces. Later in the day, Sir John was beheaded by James MacDonnell on a stone. It is documented that this event occurred in November 1597. A 'standing stone' still stands to this day, approximately one mile east of the village.