Theo
5 countries#82 in United States, 2025Popularity across 5 countries
Each line is scaled to its own peak, so you can compare when Theo was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
39,333 births recorded 1880–2025 · currently #82 · peaked in 2023 with 4,182 births
Most common in: California, Texas, New York, Florida, Illinois
Source: Social Security Administration, official birth-registration data
🇬🇧 United Kingdom
37,025 births recorded 1990–2025 · currently #7 · peaked in 2019 with 3,058 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🏴🏴 England & Wales
32,913 births recorded 1996–2021 · currently #15 · peaked in 2018 with 2,741 births
Source: Office for National Statistics, official birth-registration data
🇫🇷 France
5,284 births recorded 2000–2022 · currently #902 · peaked in 2010 with 1,432 births
Most common in: Bouches-du-Rhône, Haute-Garonne, Paris, Nord, Oise
Source: INSEE, official birth-registration data
🏴 Scotland
2,803 births recorded 1990–2025 · currently #6 · peaked in 2024 with 270 births
Source: National Records of Scotland, official birth-registration data
Northern Ireland
1,309 births recorded 2001–2025 · currently #7 · peaked in 2022 with 132 births
Source: NISRA, official birth-registration data
United States rank history
Theo’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #1116 | — |
| 2007 | #1012 | ↑104 |
| 2008 | #1019 | ↓7 |
| 2009 | #1032 | ↓13 |
| 2010 | #914 | ↑118 |
| 2011 | #863 | ↑51 |
| 2012 | #790 | ↑73 |
| 2013 | #663 | ↑127 |
| 2014 | #509 | ↑154 |
| 2015 | #405 | ↑104 |
| 2016 | #354 | ↑51 |
| 2017 | #290 | ↑64 |
| 2018 | #243 | ↑47 |
| 2019 | #195 | ↑48 |
| 2020 | #172 | ↑23 |
| 2021 | #142 | ↑30 |
| 2022 | #98 | ↑44 |
| 2023 | #78 | ↑20 |
| 2024 | #80 | ↓2 |
| 2025 | #82 | ↓2 |
Frequently asked questions about Theo
Is Theo a popular name?
Yes — Theo currently ranks #82 among boys’ names in United States as of 2025, based on official birth records.
Is Theo more common for boys or girls?
Theo is recorded predominantly as a boys’ name in official United States birth data.
When was Theo most popular?
Theo peaked in 2023 in United States, with 4,182 recorded births that year.
Is Theo rising or falling in popularity?
In United States, Theo’s popularity is rising — its rank has improved from #640 in 1880 to #82 in 2025.
How many babies have been named Theo?
At least 81,642 babies have been recorded with the name Theo across official birth statistics in 5 countries.
Is Theo popular in more than one country?
Yes — Theo appears in official birth records in 5 countries: United States, England & Wales, France, Scotland, Northern Ireland.
What names are similar in popularity to Theo?
Based on real 2025 ranking data in United States, names ranked closest to Theo include Aaron, August, Ian, Adriel.
Similar names right now
Ranked directly next to Theo in United States, 2025 — a real popularity match, not a subjective list.