Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
KYLE
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) From a district of the same name in Ayrshire, Scotland. Gaelic, Coill, a wood. The river Coyle runs through the district, whence, perhaps, the name.
Patronymica Britannica (1860)
KYLE. A topographical term implying a sound or strait. Jamieson.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic