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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

0.004%0.008%0.012%0.016%18801900192019401960198020002020#927 in 2025
Boys — share of U.S. male birthsSource: SSA, 1880–2025◆ peak 2025

Where Caius is most popular

Alaska: fewer than 5 boys named Caius in 2025AK—Maine: fewer than 5 boys named Caius in 2025ME—Vermont: fewer than 5 boys named Caius in 2025VT—New Hampshire: fewer than 5 boys named Caius in 2025NH—Washington: #737 (8 boys, 0.02% of boys born 2025)WA#737Idaho: fewer than 5 boys named Caius in 2025ID—Montana: fewer than 5 boys named Caius in 2025MT—North Dakota: fewer than 5 boys named Caius in 2025ND—Minnesota: #586 (8 boys, 0.03% of boys born 2025)MN#586Wisconsin: #785 (5 boys, 0.02% of boys born 2025)WI#785Michigan: #905 (7 boys, 0.02% of boys born 2025)MI#905New York: #1760 (5 boys, 0.01% of boys born 2025)NY#1760Massachusetts: #690 (6 boys, 0.02% of boys born 2025)MA#690Rhode Island: fewer than 5 boys named Caius in 2025RI—Oregon: fewer than 5 boys named Caius in 2025OR—Nevada: fewer than 5 boys named Caius in 2025NV—Wyoming: fewer than 5 boys named Caius in 2025WY—South Dakota: fewer than 5 boys named Caius in 2025SD—Iowa: fewer than 5 boys named Caius in 2025IA—Illinois: #1280 (5 boys, 0.01% of boys born 2025)IL#1280Indiana: #621 (10 boys, 0.03% of boys born 2025)IN#621Ohio: #710 (12 boys, 0.02% of boys born 2025)OH#710Pennsylvania: #846 (9 boys, 0.02% of boys born 2025)PA#846New Jersey: fewer than 5 boys named Caius in 2025NJ—Connecticut: fewer than 5 boys named Caius in 2025CT—California: #807 (30 boys, 0.02% of boys born 2025)CA#807Utah: fewer than 5 boys named Caius in 2025UT—Colorado: fewer than 5 boys named Caius in 2025CO—Nebraska: fewer than 5 boys named Caius in 2025NE—Missouri: #709 (7 boys, 0.03% of boys born 2025)MO#709Kentucky: fewer than 5 boys named Caius in 2025KY—West Virginia: fewer than 5 boys named Caius in 2025WV—Virginia: #1089 (5 boys, 0.01% of boys born 2025)VA#1089Maryland: #571 (8 boys, 0.03% of boys born 2025)MD#571Delaware: fewer than 5 boys named Caius in 2025DE—Arizona: #927 (5 boys, 0.02% of boys born 2025)AZ#927New Mexico: fewer than 5 boys named Caius in 2025NM—Kansas: fewer than 5 boys named Caius in 2025KS—Arkansas: fewer than 5 boys named Caius in 2025AR—Tennessee: #638 (11 boys, 0.03% of boys born 2025)TN#638North Carolina: #825 (10 boys, 0.02% of boys born 2025)NC#825South Carolina: fewer than 5 boys named Caius in 2025SC—District of Columbia: fewer than 5 boys named Caius in 2025DC—Oklahoma: #698 (5 boys, 0.03% of boys born 2025)OK#698Louisiana: fewer than 5 boys named Caius in 2025LA—Mississippi: fewer than 5 boys named Caius in 2025MS—Alabama: fewer than 5 boys named Caius in 2025AL—Georgia: #1096 (7 boys, 0.01% of boys born 2025)GA#1096Hawaii: fewer than 5 boys named Caius in 2025HI—Texas: #892 (28 boys, 0.02% of boys born 2025)TX#892Florida: #1625 (6 boys, 0.01% of boys born 2025)FL#1625
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.

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