Cloughgrenan (also spelled Cloughgrennan, Clogrenan and Clogrennan) is a historic geographic location in Ireland which gives its name to two townlands in county County Laois and one in County Carlow, spanning a total area of .
Cloughgrenan may refer to:
Clogrenan Formation - a geological formation Clogrenan ED - an electoral division in County Carlow Clogrennan Hill- a hill in County Laois Clogrennan House, a ruined historic big house in County Carlow Baronet of Cloughgrenan - a peerage title
People Baron Butler of Cloughgrenan or Earl of Arran, a title in both the Peerage of Scotland and the Peerage of Ireland Sir Edmund Butler of Cloughgrenan (1534–1602), second son of James Butler, 9th Earl of Ormond and Lady Joan Fitzgerald Sir Thomas Butler, 1st Baronet of Cloughgrenan (died 1642), Irish nobleman, illegitimate son of Sir Edmund Butler of Cloughgrenan Sir Thomas Butler, 3rd Baronet of Cloughgrenan (died 1704), Irish baronet and politician Sir Pierce Butler, 4th Baronet of Cloughgrenan (1670–1732), Irish politician and baronet Sir Richard Butler, 5th Baronet of Cloughgrenan (1699–1771), Irish politician and baronet Sir Thomas Butler, 6th Baronet of Cloughgrenan (1735–1772), Irish politician and baronet Sir Richard Butler, 7th Baronet of Cloughgrenan (1761–1817), Anglo-Irish politician