Walwin \wa(l)-win\ as a boy's name is a variant of Walwyn (Old English), and the meaning of Walwin is "Welsh friend".

The baby name Walwin sounds like Walwinn, Elwin, Aylwin, Alwin, Jalin, Welwyn, Walwynn and Waylin. Other similar baby names are Colwin, Delwin, Kelwin, Melwin, Selwin, Walden, Waldon and Walton.