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