The English surname Harmon, also found in Ireland, is derived from a Germanic personal name composed of the elements heri, hari meaning “army” and  man meaning “man.” In England and Ireland this name was introduced by the Normans after the Norman invasion in the 11th Century. In Ireland the name is primarily found in County Louth. The first recorded spelling of the family name is shown to be that of Willelmus Hermannus, which was dated 1141 - 1149, in the "Records of Holme", Norfolk. The name is first found in the New World in 1637 when John Harmon arrived in Virginia. Today there are approximately 73,000 bearers of the name Harmon living in the US.