Boy · #12,230 in 2026

Casius

Name: Popularity of the name Casius in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Casius, baby name, popularity, U.S., SSA, rankings

Current Rank

#12,230

Peak Rank

#9,549 (2020)

Total Babies

5-Yr Trend

Stable

2008

First Year

2023

Last Year

2020

Peak Year

#9549

Peak Rank

Total Count

Years Active

The Story of Casius

Casius first appeared in U.S. Social Security Administration records as a baby boy name in 2008, with 5 babies given the name that year. Its peak popularity came in 2020, when 7 Casiuss were born — ranking #9,549 that year. As of 2026, Casius ranks #12,230 for baby boys with 5 births, with steady use. In total, more than 42 Casiuss have been born in the U.S. since records began in 1880, spanning the 2000s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Names that sound like Casius

Phonetically similar names — useful when Casius is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Cassius
Caseous
Casus
Casias
Cuspis
Kuskus
Cosinus
Gaseous
Custis
Concious
Couscous
Cassettes

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Casius

What does the name Casius mean?

Casius is a boy's name that has been used in U.S. records since 2008. Behind the Name doesn't list a specific etymology, but the name has remained in use across multiple decades.

How popular is Casius in 2026?

In 2026, Casius ranks #12,230 among boys' names in the U.S., with 5 babies given the name that year.

When was Casius most popular?

Casius reached its peak popularity in 2020, ranking #9,549 that year with 7 babies given the name.

Is Casius a unisex name?

In U.S. Social Security records, Casius is primarily a boy's name. We don't have meaningful data for it as a girl's name.

What names go well with Casius?

Names that share a similar style or popularity range with Casius include Barker, Booth, Sahr. These pairings are based on rank proximity and naming era in U.S. data.

About the name Casius

Casius is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 2008 and has accumulated 42 births in the dataset. Casius's peak popularity came in 2020 when it ranked #9,549. Use the chart and map above to compare Casius's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.