The boy name Oilbhreis [ syll.oi-(l)(b)hrei(s), oil-bhre-is ] has its origins in the Germanic language and it is used largely in Scottish. Oilbhreis is a variant form of Oliver (English and German).
Oilbhreis is uncommon as a baby boy name. It is not listed within the top 1000. In 2007, within the family of boy names directly related to Oilbhreis, Oliver (English and German) was the most popular.