Greenan may refer to:
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Greenan (surname)
Places
;Northern Ireland
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Greenan, Aghaderg, a townland in the civil parish of Aghaderg in County Down
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Greenan, Bodoney Lower, a townland in the civil parish of Bodoney Lower in County Tyrone
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Greenan, County Armagh, a townland in the civil parish of Grange in County Armagh
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Greenan, County Fermanagh, a townland in the civil parish of Kinawley in County Fermanagh
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Greenan, County Londonderry, a townland in the civil parish of Faughanvale in County Londonderry
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Greenan, Culfeightrin, a townland in the civil parish of Culfeightrin in County Antrim
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Greenan, Dromore, County Down, a townland in civil parish of Dromore in County Down
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Greenan, Dromore, County Tyrone, a townland in the civil parish of Dromore in County Tyrone
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Greenan, Duneane, a townland in the civil parish of Duneane in County Antrim
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Greenan, Kilskeery, a townland in the civil parish of Kilskeery in County Tyrone
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Greenan, Newry, a townland in the civil parish of Newry in County Down
;Republic of Ireland
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Greenan Mountain, County Donegal
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Greenan, County Donegal, a townland in the civil parish of Killymard, County Donegal
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Greenan, County Wicklow
Greenan () is a village in County Wicklow, Ireland. Nearby are the towns of Rathdrum and Aughrim along with the glaciated valleys of Glendalough and Glenmalure. The name is spelled 'Greenane' on older signs in the village; the modern versio ...
, a village
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Greenan, Kilbeggan, a townland in the civil parish of Kilbeggan, County Westmeath
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Greenan, Killucan, a townland in the civil parish of Killucan, County Westmeath
*The Greenan, an alternative name for the
Grianan of Aileach
The Grianan of Aileach ( ; ga, Grianán Ailigh ), sometimes anglicised as Greenan Ely or Greenan Fort, is a hillfort atop the high Greenan Mountain at Inishowen in County Donegal, Ireland. The main structure is a stone ringfort, thought to h ...
, an ancient stone-fort atop Greenan Mountain, County Donegal
;Scotland
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Greenan, South Ayrshire, a settlement in Scotland
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Greenan Castle
Greenan Castle is a 16th-century ruined tower house, around southwest of Ayr in South Ayrshire, Scotland. Situated at the top of a sea cliff, it was originally a promontory fort converted into a motte-and-bailey in the 12th century. In the 15 ...
, a castle in Scotland
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