Sherwyn \sh(e)-rw-yn\ as a boy's name is a variant of Sherwin (Middle English), and the meaning of Sherwyn is "bright friend".
The baby name Sherwyn sounds like Sherwen, Sherwynne and Sherwinn. Other similar baby names are Berwyn, Caerwyn, Chetwyn, Derwyn, Kerwyn, Merwyn, Sherman and Shermon.