Meaning A variation of the name Tegan which means 'pretty', 'fair', 'blessed' or 'holy'. Origin of Teaghan Welsh +-100%Zoom level changed to 1 Popular Middle Names Lynea, Naviyah Pronunciation 🔊 Listen Teaghan TEH-gahn Similar Names Teigan Teegan Jennifer Triniti Gwendolen Gwen Glenys Glenis Trinitee Gwynn Year by Year Popularity of Teaghan