Lisduff, County Cork

Lisduff () is a townland in County Cork, Ireland. Historical records list "Lisduffe" from the Down Survey dated 1655. The Record of Monuments and Places contains two entries in the Lisduff area; a millstone and a ringfort.
Ringfort.
The ringfort is described as a circular area approximately 34 meters in diameter defined by a 1.7 meter scarp with the interior rising towards centre. Damage to the southwest portion can be viewed from satellite imagery.