John Guillim (c. 1565 – 7 May 1621) of Minsterworth, Gloucestershire, was an antiquarian and officer of arms at the College of Arms in London. He is best remembered for his monumental work on heraldry, A Display of Heraldry, first published in London in 1610.
- ^ Strong, George (1848) The Heraldry of Herefordshire: Being a Collection of the Armorial Bearings of Families Which Have Been Seated in the County at Various Periods Down to the Present Time, London, Churton Press; Burke's General Armory, 1884, p.433, abbrev. to "erm" only