Boy name
Caius
Caius is currently the #927 boy name in the United States, based on 2025 Social Security data. In raw numbers: 254 babies. Momentum is clearly positive: five years ago it ranked #1209, now it sits at #927. Remarkably, 2025 is the strongest year in the entire SSA record for Caius, which stretches back to 1994. State by state, Maryland leads the way at #571.
Rankings
2025 rank
#927
among boy names
Trend
Rising
last 5 years
All-time peak
#927
in 2025 (2020s)
Babies in 2025
254
boys named Caius
Caius popularity, 1880–2025
Where Caius is most popular
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: Maryland (#571), Minnesota (#586), Indiana (#621)
Uniqueness score
52/ 100Balanced
everywhereone of a kind
Well known, but far from crowded — the middle of the field. Based on how many babies per birth were named Caius in the most recent year of SSA data.
Similar names
Explore lists