Louis vs Lou
Side-by-side comparison of Louis and Lou - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Louis | Lou |
| Current Rank | #236 | #2508 |
| Total Births (all years) | 406,470 | 34,109 |
| Peak Year | 1921 | 1954 |
| Peak Year Births | 7,247 | 1,495 |
| Peak Decade | 1920s | 1950s |
| Gender | Boy | Girl |
| First Recorded Year | 1880 | 1880 |
Births by Decade
| Decade | Louis | Lou |
| 1880s | 8,275 | 1,364 |
| 1890s | 8,442 | 1,283 |
| 1900s | 10,372 | 1,261 |
| 1910s | 50,600 | 2,550 |
| 1920s | 67,693 | 3,930 |
| 1930s | 47,754 | 5,165 |
| 1940s | 49,430 | 4,722 |
| 1950s | 47,933 | 9,084 |
| 1960s | 33,382 | 3,037 |
| 1970s | 20,145 | 767 |
| 1980s | 17,354 | 177 |
| 1990s | 14,436 | 65 |
| 2000s | 10,262 | 85 |
| 2010s | 11,815 | 255 |
| 2020s | 8,577 | 364 |
Recent Annual Births (2014–present)
| Year | Louis | Lou |
| 2014 | 1,229 | 22 |
| 2015 | 1,210 | 29 |
| 2016 | 1,242 | 35 |
| 2017 | 1,302 | 30 |
| 2018 | 1,388 | 39 |
| 2019 | 1,475 | 40 |
| 2020 | 1,334 | 43 |
| 2021 | 1,422 | 54 |
| 2022 | 1,442 | 62 |
| 2023 | 1,478 | 69 |
| 2024 | 1,510 | 71 |
| 2025 | 1,391 | 65 |