Meaning Trevet is a boys name of Celtic origin, it means one who is from the mouth or three hills. Origin of Trevet Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Trevet tree-VET Similar Names Tory Annan Campbell Artek Torrance Torry Torran Torrey Torrian Torean Year by Year Popularity of Trevet