What is Kay short for?
Kay is short for Katherine and Catherine. In 2025, 37 girls and 10 boys in the United States were given Kay as their full name, with nothing longer behind it, according to Social Security records.
The names behind Kay
Each count is the number of children given that name in the United States in 2025, from US Social Security records. A name given to fewer than five children in a year is left out of the published file.
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