Lou vs Louise

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

Name A

Lou

Girl name · Rank #2524

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Name B

Louise

Girl name · Rank #538

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Which name is more popular?

Metric Lou Louise
Current Rank #2524 #538
Total Births (all years) 34,043 335,882
Peak Year 1954 1921
Peak Year Births 1,495 9,180
Peak Decade 1950ss 1920ss
Gender Girl Girl
First Recorded Year 1880 1880

Births by Decade

Decade Lou Louise
1880ss 1,364 9,596
1890ss 1,283 15,174
1900ss 1,261 22,862
1910ss 2,550 67,973
1920ss 3,930 82,895
1930ss 5,165 49,859
1940ss 4,722 38,664
1950ss 9,084 25,853
1960ss 3,037 10,893
1970ss 767 2,918
1980ss 177 1,965
1990ss 65 1,295
2000ss 85 1,035
2010ss 255 2,489
2020ss 298 2,411

Recent Annual Births (2014–present)

Year Lou Louise
2014 22 201
2015 29 243
2016 35 313
2017 30 339
2018 39 340
2019 40 428
2020 43 417
2021 54 460
2022 62 462
2023 69 513
2024 70 559

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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