Baby name
Lou
Girl Boy
89% girls / 11% boys
Origin of the name
Show the…
Comeback name
34,109births since 1880
1950sgeneration
No. 204rank at its peak, in 1954
Where babies named Lou are born
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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
- Lu 4,046
Names from the same era
Rising name
4,089births since 1880
2020sgeneration
No. 1919rank at its peak, in 2025
Where babies named Lou are born
Loading the map…
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 California (3.7 times), taking into account all births in each state since 1910.
One letter apart
Names from the same era
Born in…
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Girls and boys, decade by decade
| Decade | Girls | Boys |
|---|---|---|
| 1880s | 92% | 8% |
| 1890s | 93% | 7% |
| 1900s | 94% | 6% |
| 1910s | 90% | 10% |
| 1920s | 92% | 8% |
| 1930s | 94% | 6% |
| 1940s | 92% | 8% |
| 1950s | 95% | 5% |
| 1960s | 88% | 12% |
| 1970s | 75% | 25% |
| 1980s | 51% | 49% |
| 1990s | 29% | 71% |
| 2000s | 35% | 65% |
| 2010s | 45% | 55% |
| 2020s | 46% | 54% |