Boys' name · since 1884
Theodor
Theodor has 2,216 recorded births since 1884 in federal Social Security data, most heavily in 2022 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #3,085 of 45,481
- all-time among boys
- #1,994 of 13,930
- 2025 SSA year
- 2,216
- born since 1884
- 2010s
- peak decade
Theodor currently ranks #1994 among boys' names in America, with 2,216 babies recorded since 1884.
Theodor has 2,216 recorded births among boys since 1884, per the U.S. Social Security Administration, ranked #1994 as of the latest data, more common than 86% of boys, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1884 to 2025.
- #3,085 of 45,481 all-time among boys
- #1,994 of 13,930 2025 SSA year
- 2,216 born since 1884
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Theodor ranks #3,085 of 45,481 boys' names by all-time recorded births (highest first) and #1,994 of 13,930 among boys' names in 2025. 2,216 born since 1884, peaking in the 2010s.
- #3,085 of 45,481
- all-time among boys
- #1,994 of 13,930
- 2025 SSA year
- 2,216
- born since 1884
- 2010s
- peak decade
Theodor's 2,216 recorded births place it above 93.21% of the 45,481 boys names in the full SSA archive.
13 jurisdictions carry state-level records, led by California.
How Theodor compares
2,216 Top 21% higher than 79% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Theodor's all-time total is 6x the median boys name, and Liam still leads by a wide margin.
| Metric | Theodor | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 2,216 | 369 | 358,536 |
| Peak-year births | 88 | 34 | 22,252 |
Theodor's usage pattern, beyond the headline number
Theodor splits its recorded history at 1966: 68% of all births land in the more recent half, 32% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1884 (5 births) -- compare that against the 2022 peak of 88 for a sense of just how much the name's popularity has swung.
Theodor popularity over time
Annual U.S. births registered with the Social Security Administration · 1884–2025
- Peak year (2022)
- 88
- Annual births at peak, across 142 years of records
Theodor by decade
2010s is the heaviest window (492 births, 22% of the file).
2010s was Theodor's strongest decade.
492 babies received the name during that ten-year window, about 22% of all-time use.
Theodor births by decade
Total births in each ten-year window
- 1880s 10
1880s
10 births
- 1890s 6
1890s
6 births
- 1910s 110
1910s
110 births
- 1920s 139
1920s
139 births
- 1930s 120
1930s
120 births
- 1940s 113
1940s
113 births
- 1950s 139
1950s
139 births
- 1960s 124
1960s
124 births
- 1970s 79
1970s
79 births
- 1980s 98
1980s
98 births
- 1990s 127
1990s
127 births
- 2000s 189
2000s
189 births
- 2010s
2010s
492 births
- 2020s
2020s
470 births
What this shows Peak: 2010s at 492 births (22% of all-time use).
How Theodor compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Theodor's total volume
Theodor by state
Where Theodor concentrates geographically, total births since 1884
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 130 | 5.9% |
| #2 | New York | | 85 | 3.8% |
| #3 | Texas | | 36 | 1.6% |
| #4 | Illinois | | 21 | 0.9% |
| #5 | Pennsylvania | | 21 | 0.9% |
| #6 | Washington | | 21 | 0.9% |
| #7 | Florida | | 10 | 0.5% |
| #8 | Massachusetts | | 10 | 0.5% |
130 of 2,216 births nationwide. Compared to a flat distribution across 13 reporting states.
Theodor appears in 13 states. Explore state details →
Frequently Asked Questions
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What to do with Theodor's data
- Theodor's usage has stayed within range of its 2010s decade-level peak (492 total births) through the 2020s (470) -- a comparatively stable name, not a fading trend.
- California records the most Theodors (130 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Theodor
Nearby Names Like Theodor
Names with a similar sound, spelling, or feel to Theodor
Compare Theodor side by side: Theodor vs Theodore Theodor vs Theo Theodor vs Theron
Related Names
Names with a similar popularity rank to Theodor
Nationwide names with similar peak year or record span
Two nationwide peer axes for Theodor: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2022)
Similar record span (~141 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1884–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Theodor draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.