William Head

(male) Probably the most successful of all the Old French names of Germanic origin that were introduced to England by the Normans. It is derived from Germanic wil ‘will, desire’ + helm ‘helmet, protection’. The fact that it was borne by the Conqueror himself does not seem to have inhibited its favour with the ‘conquered’ population: in the first century after the Conquest it was the commonest male name of all, and not only among the Normans. In the later Middle Ages it was overtaken by John, but continued to run second to that name until the 20th century, when the picture became more fragmented.

English (chiefly Kent): from Middle English heved ‘head’, applied as a nickname for someone with some peculiarity or disproportion of the head, or a topographic name for someone who lived on a hill or at the head of a stream or valley. This surname has long been established in Ireland.