Baby Names Girl Names Meaning of the Name Mairwen Updated January 13, 2026 by Jennifer M. Mairwen Gender: Female Origin: Welsh Meaning: Blessed Mary ♥ Add to my Namelist What is the meaning of the name Mairwen? The name Mairwen is primarily a female name of Welsh origin that means Blessed Mary. People who like the name Mairwen also like: Seren, Adelaide, Audrey, Maeve, Aelwen, Gwendolyn, Morgana, Ronan, Devlin, Rhys, Liam, Finn, Declan, Gareth Names like Mairwen: Merryn, Muirne, Myrna, Moran, Mariana, Maren, Marnina, Moreno, Marrim, Marine, Mirian, Marian, Marion, Mirrim, Maeryn, Marmee, Maureen, Maron, Morana, Myron, Murron, Maryinane, Meryn, Muireann, Maram, Meryem, Mariano, Morna, Mariam, Morwenna Stats for the Name Mairwen Mairwen is currently not in the top 100 on the Baby Names Popularity Charts Mairwen is currently not ranked in U.S. births