Decimus
Boy nameDecimus has been given to 67 babies in the U.S. since 2006. It peaked in 2006. In 2025, about 1 in 213,510 boys was named Decimus.
Popularity over time births per year, 1880–2025
Total babies
67
Peak year
2006 (8 babies)
Rank in 2025
Below top 1000
First recorded
2006
10-year trend
▲ +14%
Gender split
All boys
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Decimus.
Sibling name ideas for Decimus
Same era and popularity as Decimus, avoiding matching initials or rhymes.
FAQ
How popular is the name Decimus?
Decimus has been given to 67 babies in the U.S. since 2006. It ranked below the top 1000 in 2025.
When did the name Decimus peak?
Decimus peaked in 2006, when 8 babies were given the name.
Is Decimus a girl or boy name?
Decimus is primarily a boy name (100% of babies named Decimus are boys).
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