Meaning A boy's name of Gaelic origin, it means "Fair Skinned." Origin of Gionnan Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Gionnan Similar Names Gannie Muiris Findley Dugan Corcurachan Dubhgan Dubhthach Baen Bean Gwynfor Year by Year Popularity of Gionnan