Lou means famous warrior — the most compact diminutive of Louis/Louise/Louisa. Lou Reed walked on the wild side. Lou Gehrig gave the luckiest-man-on-Earth speech. Lou Costello asked Who's on First? Three letters of famous warriors, wild walks, lucky farewells, and the greatest comedy routine ever performed.
Lou is a diminutive of Louis or Louise meaning famous warrior. Lou Reed (1942–2013) fronted the Velvet Underground and walked on the wild side. Lou Gehrig (1903–1941) delivered the most moving farewell speech in sports. Abbott and Costello's Who's on First? is the greatest comedy routine.
2
First recorded
Earliest known use: Diminutive used for centuries; Lou Reed (1942–2013).
3
Today
Lou remains a beloved choice, ranking #3570 in the US. 38,049 babies have been named Lou since 1880.
◈ Sources: Behind the Name, SSA data
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How popular is Lou?
1954peak year
Today, Lou is rarely chosen — ranked well outside the top 1,000 (around #3570), with only about 100 babies given the name per year. But it wasn't always this way. At its peak in 1954, 1,495 babies were given the name (ranked #204 nationally). Its strongest stretch was the 1950s. Lou has been trending upward in recent years. In all, around 38,049 babies have been registered as Lou since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
Lou's Life Path 3 is the communicator's number — wild-side communication. People named Lou tend to be warm, warrior-spirited, and gifted at walking sides nobody else would dare.
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Walks the wild side
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Warm warrior
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Luckiest-man speech
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Who's on First genius
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Three-letter cool
L3
O6
U3
Sum: 12 → Life path 3
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Personality of Lou
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Bright & creative
Imaginative, expressive, endlessly inventive.
😊
Magnetic warmth
Their laugh is contagious. People love being near them.
🌈
Eternal optimist
Even in dark moments they find the light.
🗣️
Storyteller
They can describe anything and make it fascinating.
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