Meaning A variant of the name Mary, from the Hebrew meaning 'bitterness' or 'longed for child'. Origin of Mhairi Celtic , Irish Popular Middle Names Pronunciation 🔊 Listen Mhairi MahHHAARiy Similar Names Maryann Molly Miren Mary-Jane Mirrin Mariah Malya Marriet Maryam Molly May Year by Year Popularity of Mhairi