Boy name
Louis
Louis holds the #249 spot on the 2025 list of the most popular boy names in the U.S. That amounts to 1,391 newborn boys in a single year. Its position has barely moved over the past five years — a sign of steady, established appeal. Its strongest year on record was 1882 (#18 nationally, 852 newborns), in a data series reaching back to 1880. The name's biggest fan base is in Vermont (#80 there in 2025).
Rankings
2025 rank
#249
among boy names
Trend
Stable
last 5 years
All-time peak
#18
in 1882 (1880s)
Babies in 2025
1,391
boys named Louis
Louis popularity, 1880–2025
Where Louis is most popular
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: Vermont (#80), District of Columbia (#107), South Dakota (#116)
Uniqueness score
31/ 100Very common
everywhereone of a kind
A familiar pick that most people will recognize instantly. Based on how many babies per birth were named Louis in the most recent year of SSA data.