Boys' name · peaked in 1908
Louis name popularity since 1925
295,259 babies born in the US from 1925 to 2025 were named Louis (0.6% girls, 99.4% boys). Half of them were born in 1953 or earlier, so the typical Louis is about 73 years old in 2026. Louis peaked in 1908 as the #22 name for boys, and it ranked #249 in 2025.
Key facts
- US babies since 1925
- 295,259
- Named Louis, 1925–2025
- Peak year
- 1908
- #22 for boys that year
- In 2025
- #249
- for boys in 2025 (1,391 babies)
- Girls / boys
- 99.4% boys
- 1,903 girls · 293,356 boys
- Most popular in
- Louisiana
- 2.35× its national share
Peak year is the year Louis made up the largest share of US boys, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Louis births per year, 1925–2025
The biggest year on this chart was 1925. Measured as a share of all babies, Louis peaked earlier, in 1908.
Decade by decade
Babies named Louis in each decade, and its rank among boys' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 322 | 32,268 | – |
| 1930s | 386 | 47,754 | #42 |
| 1940s | 278 | 49,430 | #55 |
| 1950s | 254 | 47,933 | #82 |
| 1960s | 210 | 33,382 | #101 |
| 1970s | 176 | 20,145 | #138 |
| 1980s | 177 | 17,354 | #164 |
| 1990s | 58 | 14,436 | #218 |
| 2000s | 10 | 10,262 | #324 |
| 2010s | 10 | 11,815 | #296 |
| 2020–25 | 22 | 8,577 | #249 |
Ranks count every name given to at least 5 boys that year, so they can go past 1,000.
Generation fingerprint
30.1% of babies named Louis from 1925 to 2025 were born in the Silent Generation years (1928–1945). The full split by generation:
Where Louis is most popular
The index compares Louis's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Louis.
| State | Index | Babies |
|---|---|---|
| Louisiana | 2.35× | 12,444 |
| Rhode Island | 2.35× | 2,462 |
| New Jersey | 2.07× | 16,834 |
| New York | 2.03× | 45,551 |
| Connecticut | 1.98× | 6,338 |
Names with a similar story
Of the other 499 names on this site, these six had the share of babies closest in shape to Louis's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Louis.
Names from the same era
Other common names that peaked within two years of Louis (1908).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data