Rex
5 countries#859 in United States, 2025Popularity across 5 countries
Each line is scaled to its own peak, so you can compare when Rex was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
60,590 births recorded 1880–2025 · currently #859 · peaked in 1952 with 1,505 births
Most common in: California, Texas, Indiana, Ohio, Michigan
Source: Social Security Administration, official birth-registration data
🇬🇧 United Kingdom
3,398 births recorded 1996–2025 · currently #726 · peaked in 2020 with 418 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🏴🏴 England & Wales
3,234 births recorded 1996–2021 · currently #142 · peaked in 2021 with 396 births
Source: Office for National Statistics, official birth-registration data
🏴 Scotland
138 births recorded 2011–2025 · currently #647 · peaked in 2020 with 22 births
Source: National Records of Scotland, official birth-registration data
Northern Ireland
26 births recorded 2013–2022 · peaked in 2018 with 4 births
Source: NISRA, official birth-registration data
🇫🇷 France
22 births recorded 1948–2020 · peaked in 1964 with 4 births
Source: INSEE, official birth-registration data
United States rank history
Rex’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #809 | — |
| 2007 | #874 | ↓65 |
| 2008 | #799 | ↑75 |
| 2009 | #755 | ↑44 |
| 2010 | #703 | ↑52 |
| 2011 | #618 | ↑85 |
| 2012 | #631 | ↓13 |
| 2013 | #630 | ↑1 |
| 2014 | #661 | ↓31 |
| 2015 | #679 | ↓18 |
| 2016 | #631 | ↑48 |
| 2017 | #607 | ↑24 |
| 2018 | #631 | ↓24 |
| 2019 | #651 | ↓20 |
| 2020 | #681 | ↓30 |
| 2021 | #698 | ↓17 |
| 2022 | #696 | ↑2 |
| 2023 | #721 | ↓25 |
| 2024 | #785 | ↓64 |
| 2025 | #859 | ↓74 |
Frequently asked questions about Rex
Is Rex a popular name?
Yes — Rex currently ranks #859 among boys’ names in United States as of 2025, based on official birth records.
Is Rex more common for boys or girls?
Rex is recorded predominantly as a boys’ name in official United States birth data.
When was Rex most popular?
Rex peaked in 1952 in United States, with 1,505 recorded births that year.
Is Rex rising or falling in popularity?
In United States, Rex’s popularity is falling — its rank has slipped from #505 in 1880 to #859 in 2025.
How many babies have been named Rex?
At least 64,010 babies have been recorded with the name Rex across official birth statistics in 5 countries.
Is Rex popular in more than one country?
Yes — Rex appears in official birth records in 5 countries: United States, England & Wales, Scotland, Northern Ireland, France.
What names are similar in popularity to Rex?
Based on real 2025 ranking data in United States, names ranked closest to Rex include Evren, Avyaan, Aslan, Eddie.
Similar names right now
Ranked directly next to Rex in United States, 2025 — a real popularity match, not a subjective list.