Louis Boy
How popular is Louis?
#249 boy name in 2025
1,391 baby boys were named Louis in the US in 2025, making it the 249th most popular boy name. Another 6 girls got the name (#13,204 for girls).
173,219living people named Louis (est.)
59median age of people named Louis
409,317babies named Louis since 1880
1 in 2,373US babies born in 2025
Louis popularity over time
Boys Girls
| Rank in 2025 | #249 for boys (▼ 13 from 2024) |
|---|---|
| Babies in 2025 | 1,391 boys, 6 girls |
| 10-year trend | Steady (+15% babies vs 2015) |
| Earlier ranks | #296 in 2015, #260 in 2020 |
| Peak year | 1921 (7,247 boys) |
| Highest rank | #18 in 1882 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 1% in a class of 25 kids born in 2025 |
Where Louis is most popular
Babies named Louis per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL
- Vermont: 3.3 per 1,000 (21 boys)
- District of Columbia: 3.3 per 1,000 (49 boys)
- Minnesota: 2.8 per 1,000 (346 boys)
- Missouri: 2.1 per 1,000 (285 boys)
- South Dakota: 2.0 per 1,000 (37 boys)
Louis by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 8,275 | #18 |
| 1890s | 8,442 | #19 |
| 1900s | 10,372 | #22 |
| 1910s | 50,600 | #20 |
| 1920s | 67,693 | #27 |
| 1930s | 47,754 | #34 |
| 1940s | 49,430 | #50 |
| 1950s | 47,933 | #66 |
| 1960s | 33,382 | #101 |
| 1970s | 20,145 | #124 |
| 1980s | 17,354 | #151 |
| 1990s | 14,436 | #168 |
| 2000s | 10,262 | #272 |
| 2010s | 11,815 | #248 |
| 2020s | 8,577 | #236 |
Boy names about as popular as Louis
Questions
- Is Louis a boy or girl name?
- Louis is mostly a boy name. Over the last 10 years, 100% of babies named Louis were boys.
- How popular is the name Louis?
- 1,391 baby boys were named Louis in the US in 2025, making it the 249th most popular boy name. Another 6 girls got the name (#13,204 for girls).
- When was Louis most popular?
- Louis peaked in 1921, when 7,247 boys were given the name. Its highest rank was #18 in 1882.
- How many people are named Louis?
- 409,317 babies have been named Louis in the US since 1880. We estimate about 173,219 of them are alive in 2026, with a median age of 59.
- Where is Louis most popular?
- From 2021 to 2025, Louis was most common in Vermont, at 3.3 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.