William Hawthorne

(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 and Scottish: topographic name for someone who lived by a bush or hedge of hawthorn (Old English haguþorn, hægþorn, i.e. thorn used for making hedges and enclosures, Old English haga, (ge)hæg), or a habitational name from a place named with this word, such as Hawthorn in County Durham. In Scotland the surname originated in the Durham place name, and from Scotland it was taken to Ireland. This spelling is now found primarily in northern Ireland.