Eleanor Hardacre (née Stoney; March 10, 1677 – April 1743) was the 8th great-grandmother of Cometan, classified as one of Cometan’s distant paternal ancestors in the Hardacre family line. Born in Clapham in Yorkshire, Eleanor was the wife of Henry Hardacre (1688 – ????) and the mother of Henry Hardacre (1721 – 1804). Eleanor is recorded as having died at Woodhouse in Yorkshire at the age of sixty-six.
In Cometanic ancestry, Eleanor is categorised as part of the 10th generation retrograde, classifying her as a distant ancestor of Cometan.