Meaning and Name Origin
Kelwin \k(e)-lwin, kel-win\ as a boys' name. Kelwin's name origin is English, and Kelwin means "friend of ships". Kelwin is a derivative of Kelvin (English): also possibly a place name referring to a river. Seldom used as a birth name.
Kelwin is a rare first name for males. Kelwin is a rare surname too for both adults and children. (2000 U.S. Census)
Below is a graphed comparison of the popularity of the boy name Kelwin and corresponding names. The only prominent varying form of Kelwin (#unlisted) ranked in the Top 1000 is Kelvin (#684 in 2014). This boy name reached the apex of its popularity during the years 1960-1969 and is now much less widespread, with the form Kelvin becoming less fashionable. (2014 Birth Statistics)
Kelwin is alike in pronunciation to Colwin, Kaelin, Kalin, Keallin, Keelin, Kelan, Kellan▲, Kellen▲ and Kellin. Other recommended similar baby names are Delwin, Keltin, Kerwin, Klein, Melwin and Selwin. Like Kelwin, these names are not commonly used.