Meaning The name of several Welsh Kings, means 'enthusiasm'. Origin of Rhys Welsh +-100%Zoom level changed to 1 Popular Middle Names Alexander, Christopher, Gabriel, Michael, Patrick, Thomas, William, Stanley, Oliver, Gordon Pronunciation 🔊 Listen Rhys RIY-Z Similar Names Ap Rhys Magnus Rees Reese Gruffydd Reece Reiss Rajdeep Rajadhiraj Richard Year by Year Popularity of Rhys