Glendalough (disambiguation)

Glendalough is a former monastic settlement in County Wicklow, Ireland.

Glendalough may also refer to:
 * The former Diocese of Glendalough
 * The current Diocese of Dublin and Glendalough
 * Glendalough, Rosewood, a heritage-listed villa in Rosewood, City of Ipswich, Queensland, Australia
 * Glendalough State Park, Minnesota, US
 * Glendalough, Western Australia, a suburb of Perth
 * Electoral district of Glendalough
 * Glendalough railway station
 * Bodleian Library, MS Rawlinson B 502, sometimes called The Book of Glendalough