Mullies is one of several variant surnames found in England, the most prevalent being MULLIS. Its first appearance is in Michaelstow Parish in Cornwall in the records of Court of Star Chamber which, in 1585, recorded individuals interchangeably as MULLYS, MULLIS, MULLES and MULLIES.<1 Court of Star Chamber, PRO B10/20 60/5,82/20/107/27. /ref>