NameTrends.U.S. Baby Name Data

Lou Boys

The U.S. popularity history of Lou: every year it appeared on the national list since 1880, with 4,089 recorded births in total. All figures come from official Social Security card application data.

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Total recorded births
4,089
Peak year
2025 #1929
Years on the list
144
10-year trend
+67.6%

In the 2020s · Most used in NY in {year}

Popularity history

1880–2025

YearBirthsRank
201127#3855
201218#5169
201324#4136
201427#3854
201538#3060
201645#2710
201737#3167
201832#3488
201944#2836
202058#2340
202161#2290
202276#2013
202374#2040
202470#2125
202581#1929

Most recent years shown. The full curve above covers every year the name appeared.

Where {name} was most used in 2025

NY
7
CA
7
MI
6
FL
6
TX
6
IA
5

Names from the same era

Names similar to Lou

See all names like Lou → →

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Curious how it stacks up against another name? Compare with the other sex → Compare with Henry →