Kathi vs Kathy
American parents have registered 334,870 Kathys since 1880, against 10,109 Kathis. Kathy is still ahead, with 48 babies in 2025.
Babies given each name, 1880–2025
Kathi Kathy
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Kathy has been the commoner name in every year either was published, 1910 to 2025. The lead has never changed hands.
The closest they came was 1954, when Kathi had 740 and Kathy had 14,195.
Side by side
| Kathi | Kathy | |
|---|---|---|
| Total US births | 10,109 | 334,870 |
| Most in one year | 824 | 23,983 |
| Babies in 2025 | under 5 | 48 |
| Estimated living today | 8,400 | 275,000 |
| Median age today | 66 | 66 |
| Peak year | 1958 | 1958 |
| Best rank | 324th girls | 14th girls |
| Rank in 2025 | unranked | 3,249th |
| First recorded | 1938 | 1910 |
| Girls / boys | 10,109 / 0 | 334,131 / 739 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Where each one is strongest
- Kathi Oregon (2.5×), Washington (2.4×), Indiana (1.7×)
- Kathy West Virginia (1.9×), Kentucky (1.6×), Indiana (1.6×)
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Kathi and Kathy.