Aro is a ♂ male name.
Aro is a Finnish short form of Aaron, which is presumably of Egyptian and Hebrew origin.
Aro means “exalted” or “of the mountains” (from Hebrew “ahărōn/אַהֲרֹן” = exalted/high mountain). In Egyptian, Aaron means “warrior” (from Egyptian “ꜥḥꜣ” = fight/battle).