Theodosius

#8,182 in 2025Boys' name

God + a giving, through Theodosius

Theodosius has been given to 10 babies in the U.S. since 2025. In 2025 it ranked #8,182 of 13,926 boys’ names in use. Its peak year was 2025, with 10 recorded.

Babies named Theodosius, 2025

1 in 332,000

Theodosius over time, 1880–2025

Boys

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Theodosius: meaning, origin, and history

God + a giving, through Theodosius

Ancient Greek

What Theodosius means

Theodosius belongs to the name family reached through Theodosius → Theodosius. Its meaning is “god + a giving”.

Origin, language, and formation

Theodosius is used in English and Latin. Its origins include Ancient Greek.

Theodosius comes through Latin Theodosius.

Related names and everyday forms

Related names include Theodosius.

Pronunciation and spelling

In Latin, Theodosius is pronounced [tʰe.ɔˈdɔ.si.ʊs].

American usage and historical context

In the United States, 10 boys were recorded with the name Theodosius between 2025 and 2025. Its highest annual count was 10 in 2025; its best national rank was #8,182 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Theodosius?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025: 1 in 332,000; 10 of 3,315,165 births
Among boys only: 1 in 171,000; <0.01% of boys
Rank, 2025: #8,182; of 13,926 boys’ names in use
Coin-flip room size: 229,791 kids; Even odds of a second one

Where Theodosius sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%

Class of 30Under 1%

Grade of 100Under 1%

School of 500Under 1%

Put another way: gather 229,791 children born in 2025 and it's an even bet that one of them is another Theodosius. In a class of 30 the chance is Under 1%.

When Theodosiuss were born

Half of everyone ever recorded as Theodosius was born before 2025 — so the typical Theodosius is around 0 today.

Median birth year: 2025; About 0 years old
Biggest decade: 2020s; 100.0% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 10; People you could plausibly meet

Choose a decade

2020s — 100.0% of all recorded uses (10).

Is Theodosius rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago: —; Not ranked then
Rank vs 5 years ago: New entry; Not ranked then
Rank vs 10 years ago: —; Not ranked then
Births vs 10 years ago: —; Not published both years
Share of its own peak: 100.0%; Peak was 2025 (10)
Years since peak: Peaking now; At its all-time high
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #8,182; 2025

Theodosius by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025: #8,182
Trend vs 5 yrs ago: New entry
Best rank ever: #8,182; 2025
Peak year: 2025; 10 that year
First recorded: 2025
Last recorded: 2025
All-time count: 10
Count in 2025: 10

Names similar to Theodosius

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Theodosius

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

For a sister

Annabell Abagail Leonor Karleigh Rhianna Adelle Keren Kendyl

For a brother

Aaden Kale Evans Hamilton Caesar Brennen Jerimiah Jorden

Explore around Theodosius

Top names of 2025, Theodosius's peak year The 2020s in full Other names that peaked in 2025 Boys' names starting with T