AgeName

Catherine vs. Katherine: which name is older?

The average Catherine is 54 and the average Katherine is 43, so Catherine is the older name, by about 11 years.

Catherine and Katherine sound alike, so the spelling is the clue: a Catherine is more likely to have been born in the mid 1950s, and a Katherine in the early 1990s.

Catherine

Average age
54
Median age
59
Estimated alive
375K
Peak year
1956

Katherine

Average age
43
Median age
40
Estimated alive
478K
Peak year
1990

When was each name popular?

Catherine peaked first, in 1956 (in the mid 1950s). Katherine peaked in 1990, 34 years later.

Estimated living people with each name, by the year they were born.

Which name is more common?

There are about 380,000 Catherines and about 480,000 Katherines alive in the US, so there are about 27% more Katherines than Catherines.

Boys or girls?

Both are girls' names: over 99% of living Catherines and over 99% of living Katherines are women.

Names the same age as Catherine

Names the same age as Katherine

More comparisons: Katherine vs. Katie · Catherine vs. Kate

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Catherine or Katherine: questions

Which is older, Catherine or Katherine?

The average Catherine is 54 and the average Katherine is 43, so Catherine is the older name, by about 11 years.

How old is the average Catherine?

The average Catherine in the US is 54; half of all living Catherines are between 37 and 71.

How old is the average Katherine?

The average Katherine in the US is 43; half of all living Katherines are between 28 and 58.

Which is more common, Catherine or Katherine?

There are about 380,000 Catherines and about 480,000 Katherines alive in the US, so there are about 27% more Katherines than Catherines.

Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this