The Glen of Aherlow (Irish: Gleann Eatharlaí) is a valley located between Slievenamuck and the Galtee Mountains in the western part of County Tipperary in Ireland.

There is also a hamlet at Rossadrehid, where Aherlow creamery was located before its closure in the late 20th century.

Other adjacent centres of population are the villages of Galbally (on the western fringe), Kilross (on the north west front) and Bansha (on the eastern approach).

[tone] Keating preached sermons there, receiving refuge and, according to tradition, lived in a cave for much of the time while on the run and compiling his magnum opus, Foras Feasa Ar Éirinn (c.

[2] A statue, titled 'Christ the King', overlooks the valley in which the Glen of Aherlow is situated.