Meaning A boy's name of Gaelic origin, it means "Dark." Origin of Tynan Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Joseph Pronunciation 🔊 Listen Tynan Similar Names Doug Doggie Dougie Teimhnean Roibin arce Dooley Duglas Dubhgall Dubhgan Year by Year Popularity of Tynan