From a Norman French name, Raulf, a contracted form of the Germanic personal name Radulf, derived from rād ‘counsel’ + wulf ‘wolf’. The spelling with -ph is due to classical influence in the 18th century.
French: nickname from Old French pinard, a small medieval coin, so called because it bore the device of a pine cone. The name may have denoted someone who paid a rent of this amount; the term seems also to have been used as a derogatory term for a rich man or miser. This is a frequent name in New England.