Darian is also a Turkish name, this name is also used in Turkey, Azerbaijan and even in Iran as a Turkish name. But it's an international boy name too as Persian name research website http://NameFarsi.com/?p=2534 says.
I have seen this name listed as English, Gaelic meaning small great one.
― Anonymous User 6/27/2006
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"Darian" is a male name also used in Bulgaria. Its meaning in this country is connected with the Bulgarian word "dar", which means "gift", and because Jesus Christ is "a Gift of God", in Bulgaria "Darian" and the other names beginning with "dar", have a nameday on 25th December.