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MyNameRoots

Baby name

Lou

Girl Boy

89% girls / 11% boys

Origin of the name

Lou is a short form of Louis or Louise.

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Comeback name

19541880190019251950197520002025
1954 was its best year: 1,495 births, or 1 baby in 2,662. After a low point around 1997, parents rediscovered it: about 60 births a year today. In 2025, it ranked No. 2645.
34,109births since 1880
1950sgeneration
No. 204rank at its peak, in 1954

Where babies named Lou are born

1954

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Tap a state to see its figures.

The darker the blue, the more common Lou is in the state, compared with its births. White: no births published that year.

Where it is most popular

Compared with the national average, Lou is most common in Mississippi (3.2 times), Oklahoma (2.9) and Kentucky (2.8), taking into account all births in each state since 1910.

One letter apart

Names from the same era

Margo · Janette · Marla · Joni · Roxanne · Rosalyn

Born in…

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Girls and boys, decade by decade

DecadeGirlsBoys
1880s92%8%
1890s93%7%
1900s94%6%
1910s90%10%
1920s92%8%
1930s94%6%
1940s92%8%
1950s95%5%
1960s88%12%
1970s75%25%
1980s51%49%
1990s29%71%
2000s35%65%
2010s45%55%
2020s46%54%