Meaning Mariely is a girls name of Celtic origin, it means 'one who is bright as a sea'. Origin of Mariely Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Mariely Mar-i-ely Similar Names Mariel Bellicent Muireann Morgan Doris Arte Arlene Muireall Muiriol Morgayne Year by Year Popularity of Mariely