Rian

Rian is an Irish name derived from the Old Irish Rian, whose precise root meaning is uncertain, though it has traditionally been associated with the Old Irish word for king or with a word meaning water or sea. It is most famously borne by Rían, a semi-legendary Irish king said to have given his name to the province of Munster in early medieval tradition. The name has also been adopted independently in English-speaking and Brazilian Portuguese contexts as a phonetic spelling variant of Ryan. Related forms include Rían, Ryan, and Ryann.