Ruadh Is A Boy’s Name Of Irish And Scottish Origin. It Comes From The Irish And Scots Gaelic Word ruadh (also Spelled rua In Irish), Meaning “red”—specifically A Russet Or Copper Color. It’s Also Used When Referring To Hair, So Ruadh Was A Name Or Nickname Often Given To Redheads In Ancient Ireland And Scotland. If Your Little One Is Lucky Enough To Have This Rare Hair Color, This Could Be The Perfect Name For Them! A Similar Name Is Ruadhán, Meaning “little Red-haired One.”