Cathy vs. Kathy: which name is older?
Cathy and Kathy are about the same age: the average Cathy is 65 and the average Kathy is 65.
Cathy and Kathy sound alike and rose and fell together, so the spelling tells you little about someone's age.
Cathy
Kathy
When was each name popular?
Both names peaked in 1958.
Which name is more common?
There are about 140,000 Cathys and about 270,000 Kathys alive in the US, so there are about 2 times as many Kathys as Cathys.
Boys or girls?
Both are girls' names: over 99% of living Cathys and over 99% of living Kathys are women.
Names the same age as Cathy
Names the same age as Kathy
Think you can guess a Cathy's age?
Ten names, one slider each. Share your score.
Cathy or Kathy: questions
Which is older, Cathy or Kathy?
Cathy and Kathy are about the same age: the average Cathy is 65 and the average Kathy is 65.
How old is the average Cathy?
The average Cathy in the US is 65; half of all living Cathys are between 62 and 71.
How old is the average Kathy?
The average Kathy in the US is 65; half of all living Kathys are between 62 and 71.
Which is more common, Cathy or Kathy?
There are about 140,000 Cathys and about 270,000 Kathys alive in the US, so there are about 2 times as many Kathys as Cathys.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this