Arin is an Irish name for boys and girls. The meaning is `mountain of strength` The name Arin is most commonly given to Norwegian boys. (8 times more often than to American boys.) In Norge it is (almost) solely given to boys In Italia, Flanders, Belgi?nd France it is (almost) solely given to girls What do they use in other countries? Erin (English,... Found on https://www.pregnology.com/names/mixed/Arin