The name Brion is a Celtic baby name. In Celtic the meaning of the name Brion is: Brave; Virtuous.
Meaning & History. The meaning of this name is not known for certain but it is possibly related to the old Celtic element bre meaning "hill", or by extension "high, noble". It was borne by the semi-legendary Irish king Brian Boru, who thwarted Viking attempts to conquer Ireland in the 11th century.
