Baby Names Boy Names Meaning of the Name Llywelyn Updated January 16, 2026 by Jennifer M. Llywelyn Gender: Male Origin: Welsh Meaning: Leader ♥ Add to my Namelist What is the meaning of the name Llywelyn? The name Llywelyn is primarily a male name of Welsh origin that means Leader. People who like the name Llywelyn also like: Bowen, Cedric, Declan, Hudson, Beau, Theodore, Rhys, Evelyn, Charlotte, Morgana, Edith, Nyx, Ophelia, Evangeline Names like Llywelyn: Lanai, Linh, Lumina, Lilyana, Lainey, Lamia, Lona, Lynn, Leimomi, Lumia, Lumi, Lahahana, Lulani, Linen, Loma, Laina, Lalana, Loman, Lynne, Lilianna, Leon, Leinani, Liwanu, Lani, Luna, Lilinoe, Lenny, Leona, Lolonyo, Leonie Stats for the Name Llywelyn Llywelyn is currently not in the top 100 on the Baby Names Popularity Charts Llywelyn is currently not ranked in U.S. births