Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
GOURLAY
As described in historical dictionaries
Patronymica Britannica (1860)
GOURLAY. This name, which is probably Norman, was introduced into Scotland by William the Lion, after his captivity. Nisbet.
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic