The Ardrahan Grassland (Irish: Féarach Árd Raithín) Special Area of Conservation or SAC is a designated Natura 2000 site, situated near the towns of Gort and Loughrea in County Galway, Ireland. Ardrahan Grassland is designated as a Special Area of Conservation under four qualifying interests: alpine and boreal heaths, Juniperus communis formations on heaths or calcareous grasslands, semi-natural dry grasslands and scrubland facies on calcareous substrates (Festuco-Brometalia) and limestone pavements.

Ardrahan Grassland Special Area of Conservation is located in south County Galway, northwest of the town of Ardrahan, in the townlands of Brackloon, Caherateige, Caherdaly, Cloghboley, Keamsellagh East, Kiltiernan West, Parkatleva and Rooaunmore.

According to archival material provided in the Logainm.ie Irish placenames website, the name Ardrahan, as Árd Raithín in the Irish language, dates back at least to the Annals of Connacht in the 1200s. The first part of the name Ardrahan - ‘Árd’ - corresponds to ‘height’ or ‘high’ in the Irish language, while the second part of the name ‘rahan’ or, in Irish, ‘raithín', corresponds to ‘small ringfort.’

The Ardrahan Grassland site was designated as a Special Area of Conservation for four key Habitats Directive Annex I habitats:

• Limestone pavement (priority habitat) [Natura 2000 code 8240]
• Orchid‐rich Calcareous grassland (priority habitat) [Natura 2000 code 6210]
• Alpine and subalpine heaths [Natura 2000 code 4060]
• Juniper scrub [Natura 2000 code 5130]

These four habitats were selected as key Irish sites for protection under the Habitats Directive Annex III criteria.

Under the European Union Habitats Directive 92/43/EEC and the Irish regulations which implement this Directive (European Communities (Birds and Natural Habitats) Regulations 2011 (S.I. No. 477 of 2011), Ireland is required to identify, legally designate and maintain or restore significant species and habitats to favourable status, to conserve biodiversity and halt ecosystem degradation in the European Union. Ireland has designated approximately 13,500 km as protected sites. Under the Habitats Directive, habitats (under Annex I) and species (under Annex II) which are considered to be seriously threatened and at risk of extinction are designated as ‘priority’ habitats. The current overall conservation status in Ireland of orchid‐rich calcareous grassland is assessed as ‘Bad with a deteriorating trend’, while that of limestone pavements is ‘Inadequate’, according to the 2019 EU report on the Status of EU Protected Habitats and Species in Ireland. The overall status of alpine and subalpine heath is ‘bad’, while that of juniper scrub is favourable, with a stable trend.

• List of Special Areas of Conservation in the Republic of Ireland