Robert Oliver

(male) One of the many French names of Germanic origin that were introduced into Britain by the Normans; it has since remained in continuous use. It is derived from the nearly synonymous elements hrōd ‘fame’ + berht ‘bright, famous’, and had a native Old English predecessor of similar form (Hreodbeorht), which was supplanted by the Norman name. Two dukes of Normandy in the 11th century bore the name: the father of William the Conqueror (sometimes identified with the legendary Robert the Devil), and his eldest son. It was borne also by three kings of Scotland, notably Robert the Bruce (1274–1329), who freed Scotland from English domination. The altered short form Bob is very common, but Hob and Dob, which were common in the Middle Ages and gave rise to surnames, are extinct. See also Rupert.

English, Scottish, Welsh, and German: from the Old French personal name Olivier, which was taken to England by the Normans from France. It was popular throughout Europe in the Middle Ages as having been borne by one of Charlemagne's paladins, the faithful friend of Roland, about whose exploits there were many popular romances. The name ostensibly means ‘olive tree’ (see Oliveira), but this is almost certainly the result of folk etymology working on an unidentified Germanic personal name, perhaps a cognate of Alvaro. The surname is also borne by Jews, apparently as an adoption of the non-Jewish surname.