Ballydoyle is a racehorse training facility located in County Tipperary in Ireland.
It is a sister thoroughbred facility to Coolmore Stud, and both are owned by John Magnier, son in law to the racehorse trainer Vincent O'Brien.
After the 1951 Cheltenham Festival, Vincent O'Brien purchased and moved into Ballydoyle, then a 285-acre (1.15 km2) farm ringed by mountains near the village of Rosegreen, County Tipperary.
[1] Vincent O'Brien trained such household names as Nijinsky, Ballymoss, Sir Ivor, Roberto, Alleged, The Minstrel, El Gran Senor and Sadler's Wells at Ballydoyle.
The recently opened Giants Causeway stable (named after the champion racehorse who was resident at Ballydoyle) is well equipped.