Balally (Irish: Baile Amhlaoibh, meaning “Olafs’ Town”), Dublin, Ireland, is a residential area at the southern end of Dundrum, Dublin between Dundrum village and the Sandyford Industrial Estate in Sandyford.

Balally Parish itself reaches from Ardglas to the M50 motorway. It has 2 primary schools (St. Olaf’s National School and Queen of Angels) and 2 secondary schools (St. Tiernan’s and Wesley College). Balally is part of the conurbation of Greater Dublin, in the county of Dún Laoghaire–Rathdown. The area contains a Luas tram station, located near the southern entrance to the new Dundrum Town Centre.