Decimus
Meaningtenth · Latin
- US rank
- #8,910
- Syllables
- 3
- Peak
- #8,732 in 2006
8 babies were named Decimus in the US in 2025. It has climbed 3,112 places in five years.
Save adds it to your list. Vote moves it up the top voted names.
US births per million boys, 2006–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Decimus you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 212,766 baby boys born in the US in 2025 was named Decimus, 8 babies in all. In a typical school of 500 kids, your Decimus would very likely be the only one.
- HistoryDecimus first shows up in US birth records in 2006, the first year at least 5 babies got it. That makes it a fairly new name, younger than many of today's parents.
- Best yearIts best year was 2006, when it reached #8,732.
- New on the sceneDecimus wasn't given to enough babies to be counted in 2000. It only took off after 2006.
- TrendDecimus has climbed 3,112 places in the US rankings over the last five years and now sits at #8,910. Fast risers like this often keep climbing, so expect to hear it more.
- MeaningIn Latin, Decimus means “tenth”.
About the name Decimus
Decimus is a boy name of Latin origin meaning “tenth”. It has 7 letters and 3 syllables, starting with D and ending in “-mus”. US birth records list Decimus for boys from 2006 to 2025, in 10 of those 20 years. Its best year was 2006, when it ranked #8,732 among boy names. In 2025 it ranked #8,910, with 8 babies.
Origin:Latin names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 2000s | 2.6 | 388,350 boys |
| 2010s | 1.8 | 564,972 boys |
| 2020s | 1.3 | 789,474 boys |
More Latin boy names
- Boy name: Oliver · olive tree
- Boy name: Theodore · gift of God
- Boy name: Lucas · man from Lucania
- Unisex name: Elias · my God is Yahweh
- Unisex name: Luca · man from Lucania
- Boy name: Sebastian · venerable
- Boy name: Leo · lion
- Boy name: Alexander · defender of men
Questions about the name Decimus
What does the name Decimus mean?
Decimus means “tenth” in Latin.
What is the origin of the name Decimus?
Decimus has Latin roots in our records. Other Latin names include Oliver, Theodore, Lucas.
Is Decimus a boy or girl name?
Decimus is a boy name.
How popular is the name Decimus?
Decimus ranked #8,910 for US boys in 2025, given to 8 babies. Its best year was 2006 (#8,732).