Theadora
Girl name · #2157 in 2025 · Very rare
How old is the name Theadora? In official American birth records, Theadora has been tracked continuously since 1906, giving it 119 years of documented American history.
Theadora is currently the #2157 girl name in the United States — 86 babies received it in 2025. A decade ago it stood at #4488, so the name has been rising over the past ten years. Roughly one in every 20,930 girls born in 2025 was named Theadora.
The 119-year story
Theadora first appears in the Social Security records in 1906, when 5 girls received the name. Its all-time peak is essentially right now: 2024, with 106 babies and a rank of #1884. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Theadora per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Theadora against up to 5 other names.
Uniqueness: will there be another Theadora in class?
On our rarity read — which blends how common Theadora is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Theadora will likely be the only one in the room, with the occasional spelling-out as the price.
Where Theadora is most common
State-level data for Theadora is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Theadora
Statistically, parents drawn to Theadora tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Eleonora, Tzipora, Theodora, Zamora, and Azora.
EleonoraTziporaTheodoraZamoraAzoraEllanoraEleanoraNoora
Rank history (last 25 years)
| Year | Babies named Theadora | Rank |
|---|---|---|
| 2025 | 86 | #2153 |
| 2024 | 106 | #1884 |
| 2023 | 76 | #2379 |
| 2022 | 85 | #2208 |
| 2021 | 90 | #2103 |
| 2020 | 70 | #2468 |
| 2019 | 73 | #2428 |
| 2018 | 41 | #3677 |
| 2017 | 41 | #3697 |
| 2016 | 32 | #4423 |
| 2015 | 31 | #4488 |
| 2014 | 14 | #8053 |
| 2013 | 15 | #7748 |
| 2012 | 20 | #6341 |
| 2011 | 11 | #9723 |
| 2010 | 9 | #11246 |
| 2009 | 6 | #15242 |
| 2008 | 14 | #8529 |
| 2007 | 14 | #8520 |
| 2006 | 8 | #12420 |
| 2005 | 13 | #8330 |
| 2004 | 9 | #10690 |
| 2003 | 17 | #6576 |
| 2002 | 11 | #8837 |
| 2001 | 15 | #6956 |
Frequently asked questions
How old is the name Theadora?
In official American birth records, the name Theadora first appeared in 1906 (over 119 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 119 years.
Is Theadora a popular girl name?
Theadora ranked #2157 among girls in 2025 with 86 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #4488.
When was the name Theadora most popular?
Theadora peaked in 2024, when 106 American girls received the name (ranked #1884 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Theadora?
In 2025, roughly 1 in 20,930 newborn American girls was named Theadora. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.