The English and Welsh surname Hayn, also found in Ireland, is derived from the Welsh personal name Einws. The name may also be an habitational name from Haynes in Bedfordshire. The first recorded spelling of the family name is shown to be that of Alice Heynes, which was dated 1327, in the "Subsidy Rolls of Somerset." Henry Hayne, an early settler in America, was recorded in Virginia in 1622. Today there are approximately 350 bearers of the name Hayn living in the US.