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