Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HANNAY
As described in historical dictionaries
Patronymica Britannica (1860)
HANNAY. Anciently Aharmay or Hannay, of Sorbie, in Wigtonshire. A Gilbert de Anneth or Hannethe is found in Rag-man Roll, A.D. 1296. Nisbet's Heraldry.
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic