Koleen vs Kolby

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

Name A

Koleen

Girl name

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Name B

Kolby

Boy name · Rank #1268

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Which name is more popular?

Metric Koleen Kolby
Current Rank Unranked #1268
Total Births (all years) 233 11,484
Peak Year 1959 2001
Peak Year Births 15 739
Peak Decade 1960ss 2000ss
Gender Girl Boy
First Recorded Year 1949 1968

Births by Decade

Decade Koleen Kolby
1940ss 5 —
1950ss 78 —
1960ss 89 5
1970ss 45 154
1980ss 11 712
1990ss 5 2,531
2000ss — 4,729
2010ss — 2,551
2020ss — 802

Recent Annual Births (2014–present)

Year Koleen Kolby
2014 — 300
2015 — 272
2016 — 219
2017 — 166
2018 — 182
2019 — 153
2020 — 170
2021 — 151
2022 — 159
2023 — 167
2024 — 155

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, 1949–1991.

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