- Who
- Eamonn Keane
- What
- 50320 kilogram(s)
- Where
- Ireland (Louisburgh)
- When
The greatest weight lifted by arm curls in one hour is 50,320 kg (110,936 lb 9 oz) and was achieved by Eamonn Keane at the Louisburgh Gym in Louisburgh, County Mayo, Ireland on 31 May 2012.