The name Darin (Дарин) is from Slavonic origin, comes from "Dar", which means "gift". There is a feminine form Darina ( Дарина). А common name in Bulgaria, Serbia, Russia, Ukraine and other countries in Eastern Europe.
― Anonymous User 11/8/2015
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"Darin" is also a Bulgarian male name. Its meaning is connected with the Bulgarian word "dar", which means "gift", and because Jesus Christ is "a Gift of God", in Bulgaria "Darin" and the other names beginning with "dar" have a nameday on 25th December.