Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
TANN
As described in historical dictionaries
Patronymica Britannica (1860)
TANN. A contraction of St. Anne. So Tooley from 8t. Olave. At Fei'sfield, co. Norfolk, there is a St. Aone's Well, which is vulgarly known as Taun's Well. Blomefield's Norf. i. 70.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English