Meaning A boy's name of Welsh origin, it means "Fair town Abbreviation of Trevelyan Origin of Trevan Welsh +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Trevan Similar Names Trevian Trevyn Trevion Travon. Trevonn Traveon trevon Trefor Tremain Gwynfor Caerwyn Year by Year Popularity of Trevan