NameData
Name file · Girl · SSA 1880–2024
Kay
Kay is a girl's name.
● Holding steadyThe Silent Generation
98,583
Total named
71
Avg ageestimated
1942
Peak year
#3,881
Rank in 2024
Kay peaked in 1942, when about 3,623 girls were given the name. Today it has nearly vanished from the charts, sitting at 3,881st — down about 99% from its peak. Most people named Kay today are around 71 years old (estimated) — squarely the Silent Generation. In all, roughly 98,583 girls have been named Kay since record-keeping began in 1885.

📈 Popularity over time

How many girls were named Kay each year, 1880–2024.
Peak: 19423,623 girls1900192019401960198020002020

♀ ♂ A shared name

Kay is given to both girls and boys. Among everyone with this name:
96% girls
4% boys

↔ Names from the same era

Other girls' names that peaked around the same time as Kay:
BillieBobbieCaroleRosalieDeloresFaye
Data: U.S. Social Security Administration (public domain), 1880–2024. Average age is estimated from a survival curve, not actuarial tables.
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How we read a name

Every figure on this page comes from the U.S. Social Security Administration's public-domain record of names given to babies born in the United States from 1880 to 2024. The SSA only counts a name in a year if at least five babies received it.

Popularity & rank

The trajectory shows how many girls were named Kay each year. The peak year is simply the year that count was highest, and the rank is where the name sat among all girls' names in 2024.

Estimated average age

We estimate the typical age of living people with this name by combining how many were born each year with a rough survival curve. It's a useful approximation for "how old does this name feel," not a precise actuarial figure — that's why we always label it estimated.

For general informational and entertainment purposes only. Counts reflect U.S. SSA card applications and may differ from total births. Figures are rounded.