Mountnorris is a small village and townland in County Armagh, Northern Ireland.

[1] (2001 Census: 165 people The townland of Mountnorris was historically called Aghnecranagh and Aghenecranagh (from Irish Achadh na Cranncha 'field of the wooded place').

[2] In 1600 Lord Mountjoy built an earthwork fort and left a garrison of 400 men under the command of Captain Edward Blaney in Mountnorris.

By 1620, the village no longer had a garrison and in the 18th century passed into the hands of the Cope family of Loughgall, to become a rural settlement with no military connections.

On 31 May 1991, during "The Troubles", the Provisional IRA carried out a large truck bomb attack against the British Army (Ulster Defence Regiment) base at nearby Glenanne.