Meaning and name origin
Selwin \s(e)-lwin, sel-win\ as a boy's name is of Old English origin, and the meaning of Selwin is "manor-friend". Selwin is a variant of Selwyn (Old English): also a derivation from Silvanus. Not often used as a boys' name.
Selwin is not a popular first name for males and an equally uncommon surname or last name for all people (Source: 2000 U.S. Population Census).
Displayed below is the baby name popularity of the name Selwin for boys. Selwin has not been ranked in the Top 1000/100 so far. (Source: 2014 Birth Name Statistics).