Last Names

Surnames / K

Kay

What is the origin of the last name Kay?

Scottish originRank #1,467 in the US

Meaning and origin

The last name Kay is of Anglo-Saxon origin, derived from the Old English word "cāeg," meaning "key." It could have been a topographic name for someone living near a key-shaped or key-associated landmark, or it may have been an occupational surname referring to a key-maker or someone who held a position of authority such as a key-keeper. This name has been found across different regions and countries, including England, Scotland, Ireland, and Germany.

Surname origins are rarely settled: one spelling can have several sources, and families often took a name for reasons nobody wrote down. Check it against the sources below before you rely on it.

Similar spellings

#1,467

Kay was the 1,467th most common surname in the 2010 US Census, with 24,337 people, about 7.9 in every 100,000.

Who carries it

  • White (non-Hispanic)85.6%
  • Hispanic or Latino2.5%
  • Black (non-Hispanic)5.9%
  • Asian or Pacific Islander3.5%
  • Two or more races1.9%
  • American Indian or Alaska Native0.6%

Where it is found

Countries linked to Kay.

Surnames like Kay

Names it is linked with, then names with the same origin and a similar standing.

Check the sources

For a name you are serious about, compare the dictionaries: Reaney and Wilson, A Dictionary of English Surnames; Hanks, Dictionary of American Family Names.