Cauley
A surname usually treated as a shortened or Anglicized form of Gaelic MacAuley / MacAuley-type names, meaning “son of Aulay” or a related Gaelic personal name.
The #7,413 most common surname in the United States (2010 Census) — about 1 in every 68,748 Americans shares it.
Etymology
Cauley is generally understood as a reduced form of Gaelic MacAuley-type surnames, especially MacAulay and related spellings. Those names go back to a personal name such as Aulay, often explained as a Gaelic rendering of Old Norse or Gaelic personal-name elements, depending on the family line. In simple terms, the surname originally meant “son of Aulay” or “descendant of Aulay.”
History
The historical record shows many spellings side by side, including MacAuley, Mac Cauley, MacCawley, and Cowley, reflecting the same broad Gaelic name-family as it moved into English spelling. In Ireland and Scotland the prefix Mac was often dropped over time, leaving shorter forms like Cauley. Because several different Gaelic surnames were Anglicized in similar ways, the modern surname can sometimes have more than one regional origin.
Origin
Regions
Variant spellings
Fun fact
Old surname dictionaries often list Cauley alongside a whole cluster of near-identical spellings, which is a good reminder that one family name could appear in several forms on the same page of a record.
From the historical record
“MAC CAUL = Mac Call, q.v. MAC CAULEY If , ' MAC CAWLEY J ^°^ ""^° AUiey, q.v. MAC CAY (Celt.) = Mackay, q.v.”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)