Hastings English and Scottish: habitational name from Hastings, a place in Sussex, on the south coast of England, near which the English army was defeated by the Normans in 1066. It is named from Old English H?stingas ‘people of H?sta’. The surname was taken to Scotland under William the Lion in the latter part of the 12th century. It also assimilated some instances of the native Scottish surname Harestane (see Hairston). English: variant of Hasting. Irish (Connacht): shortened Anglicized form of Gaelic Ó hOistín ‘descendant of Oistín’, the Gaelic form of Augustine (see Austin).
Hasting Scottish and northern English: patronymic from the comparatively rare Anglo-Norman French personal name Hasten(c), Hastang, assimilated to Hastings. The personal name is of Old Norse origin, composed of the elements há ‘high’ + steinn ‘stone’.