Kelvys \k(e)-lv-ys, kel-vys\ as a boy's name is a variant of Kelvis. See for origin and meaning of Kelvys.
The baby name Kelvys sounds like Kelviss and Kellvis. Other similar baby names are Kelvyn, Elvys, Alvys, Kalvyn, Kelsy, Kelvin, Kelvon, Kelven, Kelvan and Kevis.