Cloncollow (Irish: Cluain Colbhaigh, IPA: [ˌklˠuənʲ ˈkɔlˠəwiː]) is a townland in the Parish of Tomregan, Barony of Loughtee Lower, County Cavan, Ireland.
The townland name is an anglicisation of the Gaelic placename Cluain Colbhaigh which means 'Calva's Meadow'.
The oldest surviving mention of the name is in the 1790 Cavan Carvaghs list which spells the name as Cloncallow.
By a lease dated 6 April 1612 the said bishop granted the lands to Sir Oliver Lambart of Kilbeggan, County Westmeath and Sir Garret Moore, 1st Viscount Moore of Mellifont, County Louth.
[3] The Tithe Applotment Books for 1827 list the following tithepayers in the townland- Best, Banot, Neil, Graham, Morton, Brady.
[4] The Ordnance Survey Name Books for 1836 give the following description of the townland- Cluain Calbhaigh, 'Calvagh's lawn or meadow'.