Olivier

French, Dutch

French and Dutch form of Oliver, meaning "From Olivier, a Norman French form of a Germanic name such as Alfher or an Old Norse name such as Áleifr (see Olaf). The spelling was altered by association with Latin oliva "olive tree". In the Middle Ages the name became well-known in Western Europe because of the French epic 'La Chanson de Roland', in which Olivier was a friend and advisor of the hero Roland."