Meaning and name origin
Melwyn \m(e)-lw-yn\ as a boy's name Melwyn is a variant of Melvin: possibly masculine form of Malvina (Gaelic) "smooth brow"; (Irish, Gaelic) "polished chief"; (Old English) "sword friend"; or a variant of Melville.
Melwyn is not a popular first name for males and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Melwyn and its variant forms. The only popular variation form ranked in the Top 1000/100 is Melvin (#672). (2014 statistics).
Melwyn is also pronounced similarly to Mellan, Mellen, Mellin and Mellon. Other suggested similar baby names are Delwyn, Kelwyn, Medwyn, Melvyn, Merwyn, Selwyn and Welwyn. Like Melwyn, these names are not commonly used.