Eavan is the Welsh form of Aoibheann (Irish), both of which are pronounced "EE-van". Now, I agree that the spelling of Aoibheann is positively ridiculous, but I just love how Irish names look in their traditional spelling. I'd assume that it would be WAY too much for a first name, but I really love it! Wdyt? I would happily use Eavan as a first name, but just like Aoibheann that little bit more.