Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
KIELTY
As described in historical dictionaries
Patronymica Britannica (1860)
KEELTY. KIELTY. From the ancient personal name Caoilte, borne by one of the heroes of Ossiau. Ulster. Journ. of Archajol. No. 2.
Origin: Celtic
Region of origin: British Isles
Country of origin: Ireland
Religion of origin: Christian
Language of origin: Gaelic