- Sally's Hootenanny
- 356 people
- United States (Salamanca,Allegany State Park)
The largest game of Old McDonald Had A Farm consists of 356 participants and was achieved by Sally's Hootenanny (USA) at Allegany State Park in Salamanca, New York, USA, on 17 August 2013. The attempt was organized by Sally Marsh, who has hosted a weekly summer hootenanny in Allegany State Park since 1971.