The name Kelvyn is a Celtic baby name. In Celtic the meaning of the name Kelvyn is: From the narrow river.
Kelvyn is baby boy name mainly popular in Christian religion and its main origin is . Kelvyn name meanings is Transferred use of the surname, which arose from the name of a Scottish river Kelvin was first used as a personal name in the 1920s, perhaps in honor of Baron Kelvin (1824 - 1907), the British mathematician and physicist to whom the Kelvin scale of temperature is attributed. Other similar sounding names can be Kelvin.