Kathleen vs Kathy

Side-by-side comparison of Kathleen and Kathy — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Kathleen

Girl name · Rank #1107

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Name B

Kathy

Girl name · Rank #2691

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Which name is more popular?

Metric Kathleen Kathy
Current Rank #1107 #2691
Total Births (all years) 713,438 334,084
Peak Year 1951 1958
Peak Year Births 26,716 23,940
Peak Decade 1950ss 1950ss
Gender Girl Girl
First Recorded Year 1880 1910

Births by Decade

Decade Kathleen Kathy
1880ss 389 —
1890ss 1,942 —
1900ss 3,924 —
1910ss 16,592 57
1920ss 33,597 198
1930ss 34,550 1,254
1940ss 152,981 34,766
1950ss 224,341 157,930
1960ss 120,950 101,128
1970ss 44,846 22,707
1980ss 39,395 6,977
1990ss 24,847 4,312
2000ss 10,065 3,020
2010ss 3,808 1,381
2020ss 1,211 354

Recent Annual Births (2014–present)

Year Kathleen Kathy
2014 422 142
2015 341 126
2016 340 159
2017 314 111
2018 306 91
2019 280 76
2020 253 83
2021 262 72
2022 228 75
2023 248 60
2024 220 64

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1880–2024.

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