The Knowes of Trotty is a Bronze Age cemetery located in Mainland, Orkney in Scotland. The ancient site consists of a group of twelve surviving burial mounds, dating to 2030–1770 BC. Along with cremated human remains, four gold discs and a number of amber beads and pendants were discovered in the largest mound in 1858. Knowes of Trotty is one of the earliest group of burial mounds in Orkney and one of the largest Bronze Age cemeteries in the United Kingdom.