Aill na Cronain (Irish: Aill na Crónáin; Cronan's cliff) is an inland west-facing limestone crag in The Burren in County Clare, Ireland.

The crag is accessed by a 10–minute walk northwards from the upper car-park of the Ailwee Cave attraction (see map below).

[2] The UKClimbing online logbook notes that: "Skull slab is probably one of the best VDiffs you'll find in the country".

[1] Aill na Cronain is also listed in Ireland's Adventure Bucket List, which says that: "If you are just starting out [rock climbing], one of the best spots to visit is Aill na Cronain, just beside the Ailwee Cave".

[3] In terms of layout, the centre of Aill na Cronain is the "Skull Buttress" which has a distinctive skull–appearance when viewed from a distance.