Nay
A short surname that is most likely from a Norman place-name, though some bearers may reflect a Celtic MacNay/MacNee form.
The #6,949 most common surname in the United States (2010 Census) — about 1 in every 63,975 Americans shares it.
Etymology
The strongest historical explanation links Nay to the place called Nay in Normandy, making it a locational surname for someone who came from that district. Nineteenth-century surname scholars also note a Celtic possibility: Nay may in some cases represent a shortened or Anglicized form of MacNay or MacNee. Because the evidence is mixed, the name is best treated as having more than one possible origin depending on the family line.
History
The name appears in English records in medieval and post-medieval forms such as John le Naylere, though that example belongs to a different occupational surname and not the same etymology. Later surname dictionaries continued to associate Nay with a Norman place-name, while also cross-referencing it to Scottish and Irish MacNay/MacNee forms. In modern use, Nay is uncommon but present in English-speaking countries.
Origin
Regions
Variant spellings
Fun fact
Older surname writers sometimes grouped Nay with other deceptively short names, noting that a surname can look like an everyday word yet still hide a place-name origin.
From the historical record
“KaUGhTonJ '^-S'^ten. NAY (Fr.) Bel. to Nay (Normandy). (Celt.) for MacNay, MacNee, q.v. NAYLAR ■) (Eng.)' Nail-Maker [M.E. nayler{e; NAYLER \ M.E. nayl, O.E. n<egel,'a. nail + the NAYLOR J agent, sufif. -ere] John le Naylere. — Plac. de Quo Warr.”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)