Lou
A unisex name of Old German origin, meaning famous warrior; a form of Louis.
Babies a year
66
the US, 2017
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
#4275
4 babies
In 2025, 4 babies in England and Wales were named Lou. In the US, 66 were, though that figure is from 2017 — the most recent full year we hold. Its US peak was 1,494 in 1954.
Names about as common as Lou
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